baja yang umum digunakan dalam pembuatan menara besi

Transmisi Tegangan Tinggi Baris
Berkenalan dengan tegangan saluran transmisi dan menara dalam satu menit!
April 7, 2018
baja Menara Inspeksi
komponen & bagian Periksa : Proyek Bolivia 230KV Angle Baja Menara
April 8, 2018

baja yang umum digunakan dalam pembuatan menara besi

carbon steel seamless tube and pipes a53 a106,q235b ,q345b
Bahan Biasanya Q345B / A572, Yield Minimum Kekuatan ≥ 345 N / mm²

Q235B / A36, Yield Minimum Kekuatan ≥ 235 N / mm²

Serta Hot rolled coil dari ASTM A572 GR65, GR50, SS400, atau standar lainnya oleh klien diperlukan.

 

Product Pictures:

ISO 9001 sertifikat 35KV-500KV tegangan tinggi saluran transmisi listrik menara baja angular 10-40M

ISO 9001 sertifikat 35KV-500KV tegangan tinggi saluran transmisi listrik menara baja angular 10-40MISO 9001 sertifikat 35KV-500KV tegangan tinggi saluran transmisi listrik menara baja angular 10-40M

 

Umumnya digunakan tabel baja

TIDAK.

Kelas

jenis bahan

Dimensi(Lebar)

Ketebalan(mm)

Berat(ton / dengan

Catatan

1

Q345B

piring bergulir

1500

4-12

28

2

Q345B

piring bergulir

1800

4-12

33

3

Q345B

piring bergulir

2000

4-12

33

TIDAK.

Kelas

jenis bahan

Lebar

Panjangnya

Ketebalan(mm)

Berat(nada)

Catatan

1

Q345B

steel Plate

2000

10000

6

0.942

2

Q345B

steel Plate

2200

10000

6

1.036

3

Q345B

steel Plate

2500

10000

6

1.178

4

Q345B

steel Plate

2500

12000

6

1.413

5

Q345B

steel Plate

2000

9000

8

1.130

6

Q345B

steel Plate

2200

9000

8

1.243

7

Q345B

steel Plate

2500

9000

8

1.413

8

Q345B

steel Plate

2000

9000

10

1.413

9

Q345B

steel Plate

2200

9000

10

1.554

10

Q345B

steel Plate

2500

10000

10

1.963

11

Q345B

steel Plate

2000

9000

12

1.696

12

Q345B

steel Plate

2200

9000

12

1.865

13

Q345B

steel Plate

2500

10000

12

2.355

14

Q345B

steel Plate

2000

9000

14

1.978

15

Q345B

steel Plate

2200

9000

14

2.176

16

Q345B

steel Plate

2500

10000

14

2.748

17

Q346B

steel Plate

2000

9000

16

2.261

18

Q347B

steel Plate

2200

9000

16

2.487

19

Q348B

steel Plate

2500

10000

16

3.140

20

Q349B

steel Plate

2000

9000

18

2.543

21

Q350B

steel Plate

2200

9000

18

2.798

22

Q351B

steel Plate

2500

10000

18

3.533

23

Q352B

steel Plate

2000

9000

20

2.826

24

Q353B

steel Plate

2200

9000

20

3.109

25

Q354B

steel Plate

2500

10000

20

3.925

26

Q355B

steel Plate

2000

9000

22

3.109

27

Q356B

steel Plate

2200

9000

22

3.419

28

Q357B

steel Plate

2500

10000

22

4.318

29

Q358B

steel Plate

2500

9000

25

4.416

30

Q359B

steel Plate

2500

10000

28

5.495

31

Q360B

steel Plate

2500

10000

30

5.888

32

Q361B

steel Plate

2500

10000

32

6.280

33

Q362B

steel Plate

2500

10000

35

6.869

34

Q363B

steel Plate

2500

10000

40

7.850

35

Q364B

steel Plate

2500

9000

45

7.948

36

Q365B

steel Plate

2500

9000

50

8.831

37

Q366B

steel Plate

2500

10000

55

10.794

38

Q367B

steel Plate

2500

9000

60

10.598

39

Q368B

steel Plate

2500

9000

65

11.481

40

Q369B

steel Plate

2500

9000

70

12.364

 

Umumnya digunakan tabel baja

TIDAK.

Kelas

jenis bahan

Diameter(mm)

Ketebalan(mm)

Berat(kg / meter)

Catatan

1

Q345B

Seamless Steel Tube

32

3

2.145

2

Q345B

32

3.5

2.460

3

Q345B

Seamless Steel Tube

38

3

2.589

4

Q345B

38

3.5

2.978

5

Q345B

38

4

3.354

6

Q345B

Seamless Steel Tube

42

3

2.885

7

Q345B

42

3.5

3.323

8

Q345B

42

4

3.748

9

Q345B

Seamless Steel Tube

45

3

3.107

10

Q345B

45

3.5

3.582

11

Q345B

45

4

4.044

12

Q345B

Seamless Steel Tube

48

3

3.329

13

Q345B

48

3.5

3.841

14

Q345B

48

4

4.340

15

Q345B

Seamless Steel Tube

50

3

3.477

16

Q345B

50

3.5

4.013

17

Q345B

50

4

4.537

18

Q345B

Seamless Steel Tube

51

3

3.551

19

Q345B

51

3.5

4.100

20

Q345B

51

4

4.636

21

Q345B

Seamless Steel Tube

57

3

3.995

22

Q345B

57

3.5

4.618

23

Q345B

57

4

5.228

24

Q345B

Seamless Steel Tube

57

5

6.412

25

Q345B

60

3

4.217

26

Q345B

60

3.5

4.877

27

Q345B

Seamless Steel Tube

60

4

5.524

28

Q345B

60

5

6.782

29

Q345B

60

6

7.990

30

Q345B

60

8

10.259

31

Q345B

60

10

12.330

32

Q345B

60

12

14.204

33

Q345B

Seamless Steel Tube

63.5

3

4.476

34

Q345B

63.5

3.5

5.179

35

Q345B

63.5

4

5.869

36

Q345B

63.5

5

7.213

37

Q345B

63.5

6

8.508

38

Q345B

63.5

8

10.949

39

Q345B

63.5

10

13.193

40

Q345B

63.5

12

15.240

41

Q345B

Seamless Steel Tube

68

3

4.809

42

Q345B

68

3.5

5.567

43

Q345B

68

4

6.313

44

Q345B

68

5

7.768

45

Q345B

68

6

9.174

46

Q345B

68

8

11.837

47

Q345B

68

10

14.303

48

Q345B

68

12

16.572

49

Q345B

Seamless Steel Tube

70

3

4.957

50

Q345B

70

3.5

5.740

51

Q345B

70

4

6.510

52

Q345B

70

5

8.015

53

Q345B

70

6

9.469

54

Q345B

70

8

12.231

55

Q345B

70

10

14.796

56

Q345B

70

12

17.163

57

Q345B

Seamless Steel Tube

73

3

5.179

58

Q345B

73

3.5

5.999

59

Q345B

Seamless Steel Tube

73

4

6.806

60

Q345B

73

5

8.384

61

Q345B

73

6

9.913

62

Q345B

73

8

12.823

63

Q345B

73

10

15.536

64

Q345B

73

12

18.051

65

Q345B

73

14

20.369

66

Q345B

Seamless Steel Tube

76

3

5.401

67

Q345B

76

3.5

6.257

68

Q345B

76

4

7.102

69

Q345B

76

5

8.754

70

Q345B

76

6

10.357

71

Q345B

76

8

13.415

72

Q345B

76

10

16.276

73

Q345B

76

12

18.939

74

Q345B

76

14

21.405

75

Q345B

Seamless Steel Tube

80

3

5.696

76

Q345B

80

3.5

6.603

77

Q345B

80

4

7.497

78

Q345B

80

5

9.248

79

Q345B

80

6

10.949

80

Q345B

80

8

14.204

81

Q345B

80

10

17.262

82

Q345B

80

12

20.123

83

Q345B

80

14

22.786

84

Q345B

80

16

25.252

85

Q345B

80

18

27.521

86

Q345B

80

20

29.592

87

Q345B

Seamless Steel Tube

83

3

5.918

88

Q345B

83

3.5

6.862

89

Q345B

83

4

7.793

90

Q345B

83

5

9.617

91

Q345B

83

6

11.393

92

Q345B

83

8

14.796

93

Q345B

83

10

18.002

94

Q345B

83

12

21.010

95

Q345B

83

14

23.822

96

Q345B

83

16

26.436

97

Q345B

83

18

28.852

98

Q345B

83

20

31.072

99

Q345B

Seamless Steel Tube

89

3

6.362

100

Q345B

89

3.5

7.380

101

Q345B

89

4

8.384

102

Q345B

89

5

10.357

103

Q345B

89

6

12.281

104

Q345B

89

8

15.980

105

Q345B

89

10

19.481

106

Q345B

89

12

22.786

107

Q345B

89

14

25.893

108

Q345B

89

16

28.803

109

Q345B

89

18

31.515

110

Q345B

89

20

34.031

111

Q345B

Seamless Steel Tube

95

5

11.097

112

Q345B

95

6

13.168

113

Q345B

95

8

17.163

114

Q345B

95

10

20.961

115

Q345B

95

12

24.561

116

Q345B

95

14

27.964

117

Q345B

95

16

31.170

118

Q345B

95

18

34.179

119

Q345B

95

20

36.990

120

Q345B

Seamless Steel Tube

102

4.5

10.820

121

Q345B

102

6

14.204

122

Q345B

102

8

18.544

123

Q345B

102

10

22.687

124

Q345B

102

12

26.633

125

Q345B

102

14

30.381

126

Q345B

102

16

33.932

127

Q345B

102

18

37.286

128

Q345B

102

20

40.442

129

Q345B

Seamless Steel Tube

108

4.5

11.485

130

Q345B

108

6

15.092

131

Q345B

108

8

19.728

132

Q345B

108

10

24.167

133

Q345B

108

12

28.408

134

Q345B

108

14

32.453

135

Q345B

108

16

36.300

136

Q345B

108

18

39.949

137

Q345B

108

20

43.402

138

Q345B

Seamless Steel Tube

114

4.5

12.151

139

Q345B

114

6

15.980

140

Q345B

114

8

20.912

141

Q345B

114

10

25.646

142

Q345B

114

12

30.184

143

Q345B

114

14

34.524

144

Q345B

114

16

38.667

145

Q345B

114

18

42.612

146

Q345B

114

20

46.361

147

Q345B

Seamless Steel Tube

121

5

14.303

148

Q345B

121

6

17.015

149

Q345B

121

8

22.293

150

Q345B

121

10

27.373

151

Q345B

121

12

32.255

152

Q345B

121

14

36.941

153

Q345B

121

16

41.429

154

Q345B

121

18

45.720

155

Q345B

121

20

49.813

156

Q345B

Seamless Steel Tube

133

5

15.782

157

Q345B

133

6

18.791

158

Q345B

133

8

24.660

159

Q345B

133

10

30.332

160

Q345B

133

12

35.806

161

Q345B

133

14

41.084

162

Q345B

133

16

46.164

163

Q345B

133

18

51.046

164

Q345B

133

20

55.732

165

Q345B

Seamless Steel Tube

140

5

16.646

166

Q345B

140

6

19.827

167

Q345B

140

8

26.041

168

Q345B

140

10

32.058

169

Q345B

140

12

37.878

170

Q345B

140

14

43.500

171

Q345B

140

16

48.925

172

Q345B

140

18

54.153

173

Q345B

140

20

59.184

174

Q345B

Seamless Steel Tube

146

5

17.385

175

Q345B

146

6

20.714

176

Q345B

146

8

27.225

177

Q345B

146

10

33.538

178

Q345B

146

12

39.653

179

Q345B

146

14

45.572

180

Q345B

146

16

51.293

 

181

Q345B

Seamless Steel Tube

146

18

56.817

182

Q345B

146

20

62.143

183

Q345B

Seamless Steel Tube

152

5

18.125

184

Q345B

152

6

21.602

185

Q345B

152

8

28.408

186

Q345B

152

10

35.017

187

Q345B

152

12

41.429

188

Q345B

152

14

47.643

189

Q345B

152

16

53.660

190

Q345B

152

18

59.480

191

Q345B

152

20

65.102

192

Q345B

Seamless Steel Tube

159

5

18.988

193

Q345B

159

6

22.638

194

Q345B

159

8

29.789

195

Q345B

159

10

36.743

196

Q345B

159

12

43.500

197

Q345B

159

14

50.060

198

Q345B

159

16

56.422

199

Q345B

159

18

62.587

200

Q345B

159

20

68.555

201

Q345B

Seamless Steel Tube

168

5

20.098

202

Q345B

168

6

23.970

203

Q345B

168

8

31.565

204

Q345B

168

10

38.963

205

Q345B

168

12

46.164

206

Q345B

168

14

53.167

207

Q345B

168

16

59.973

208

Q345B

168

18

66.582

209

Q345B

168

20

72.994

210

Q345B

Seamless Steel Tube

180

5

21.578

211

Q345B

180

6

25.745

212

Q345B

180

8

33.932

213

Q345B

180

10

41.922

214

Q345B

180

12

49.715

215

Q345B

180

14

57.310

216

Q345B

180

16

64.708

217

Q345B

180

18

71.909

218

Q345B

180

20

78.912

219

Q345B

Seamless Steel Tube

194

5

23.304

220

Q345B

194

6

27.816

221

Q345B

194

8

36.694

222

Q345B

194

10

45.374

223

Q345B

194

12

53.857

224

Q345B

194

14

62.143

225

Q345B

194

16

70.232

226

Q345B

194

18

78.123

227

Q345B

194

20

85.817

228

Q345B

Seamless Steel Tube

203

5

24.413

229

Q345B

203

6

29.148

230

Q345B

203

8

38.470

231

Q345B

203

10

47.594

232

Q345B

203

12

56.521

233

Q345B

203

14

65.250

234

Q345B

203

16

73.783

235

Q345B

203

18

82.118

236

Q345B

203

20

90.256

TIDAK.

Kelas

jenis bahan

Diameter

(mm)

Ketebalan

(mm)

Berat

(kg / meter)

Catatan

1

Q345B

Hot-rolled tabung baja mulus

219

6

31.515

2

Q345B

219

8

41.626

3

Q345B

219

10

51.539

4

Q345B

219

12

61.255

 

5

Q345B

Hot-rolled Seamless Steel Tube

219

14

70.774

6

Q345B

219

16

80.096

7

Q345B

219

18

89.220

8

Q345B

219

20

98.147

9

Q345B

Hot-rolled tabung baja mulus

245

6

35.362

10

Q345B

245

8

46.755

11

Q345B

245

10

57.951

12

Q345B

245

12

68.949

13

Q345B

245

14

79.750

14

Q345B

245

16

90.354

15

Q345B

245

18

100.761

16

Q345B

245

20

110.970

17

Q345B

Hot-rolled tabung baja mulus

273

6

39.505

18

Q345B

273

8

52.279

19

Q345B

273

10

64.856

20

Q345B

273

12

77.235

21

Q345B

273

14

89.417

22

Q345B

273

16

101.402

23

Q345B

273

18

113.189

24

Q345B

273

20

124.780

25

Q345B

Hot-rolled tabung baja mulus

299

7

50.405

26

Q345B

299

8

57.408

27

Q345B

299

10

71.267

28

Q345B

299

12

84.929

29

Q345B

299

14

98.393

30

Q345B

299

16

111.660

31

Q345B

299

18

124.730

32

Q345B

299

20

137.603

33

Q345B

Hot-rolled tabung baja mulus

325

8

62.538

34

Q345B

325

10

77.679

35

Q345B

325

12

92.623

36

Q345B

325

14

107.370

37

Q345B

325

16

121.919

38

Q345B

325

18

136.271

39

Q345B

325

20

150.426

40

Q345B

Hot-rolled tabung baja mulus

351

8

67.667

41

Q345B

351

10

84.091

42

Q345B

351

12

100.317

43

Q345B

351

14

116.346

44

Q345B

351

16

132.178

45

Q345B

351

18

147.812

46

Q345B

351

20

163.249

47

Q345B

Hot-rolled tabung baja mulus

377

8

72.796

48

Q345B

377

10

90.502

49

Q345B

377

12

108.011

50

Q345B

377

14

125.322

51

Q345B

377

16

142.436

52

Q345B

377

18

159.353

53

Q345B

377

20

176.072

54

Q345B

Hot-rolled tabung baja mulus

402

8

77.728

55

Q345B

402

10

96.667

56

Q345B

402

12

115.409

57

Q345B

402

14

133.953

58

Q345B

402

16

152.300

59

Q345B

402

18

170.450

60

Q345B

402

20

188.402

61

Q345B

Hot-rolled tabung baja mulus

426

8

82.463

62

Q345B

426

10

102.586

63

Q345B

426

12

122.511

64

Q345B

426

14

142.239

65

Q345B

426

16

161.770

 

66

Q345B

Hot-rolled Seamless Steel Tube

426

18

181.103

67

Q345B

426

20

200.239

68

Q345B

Hot-rolled tabung baja mulus

459

10

110.723

69

Q345B

459

12

132.276

70

Q345B

459

14

153.632

71

Q345B

459

16

174.790

72

Q345B

459

18

195.751

73

Q345B

459

20

216.515

74

Q345B

459

22

237.081

75

Q345B

459

24

257.450

76

Q345B

459

26

277.622

77

Q345B

459

28

297.597

78

Q345B

459

30

317.374

79

Q345B

Hot-rolled tabung baja mulus

480

10

115.902

80

Q345B

480

12

138.491

81

Q345B

480

14

160.882

82

Q345B

480

16

183.076

83

Q345B

480

18

205.073

84

Q345B

480

20

226.872

85

Q345B

480

22

248.474

86

Q345B

480

24

269.879

87

Q345B

480

26

291.087

88

Q345B

480

28

312.097

89

Q345B

480

30

332.910

90

Q345B

Hot-rolled tabung baja mulus

530

10

128.232

91

Q345B

530

12

153.287

92

Q345B

530

14

178.144

93

Q345B

530

16

202.804

94

Q345B

530

18

227.267

95

Q345B

530

20

251.532

96

Q345B

530

22

275.600

97

Q345B

530

24

299.471

98

Q345B

530

26

323.145

99

Q345B

530

28

346.621

100

Q345B

530

30

369.900

101

Q345B

Hot-rolled tabung baja mulus

560

10

135.630

102

Q345B

560

12

162.164

103

Q345B

560

14

188.501

104

Q345B

560

16

214.641

105

Q345B

560

18

240.583

106

Q345B

560

20

266.328

107

Q345B

560

22

291.876

108

Q345B

560

24

317.226

109

Q345B

560

26

342.379

110

Q345B

560

28

367.335

111

Q345B

560

30

392.094

112

Q345B

Hot-rolled tabung baja mulus

630

10

152.892

113

Q345B

630

12

182.879

114

Q345B

630

14

212.668

115

Q345B

630

16

242.260

116

Q345B

630

18

271.655

117

Q345B

630

20

300.852

118

Q345B

630

22

329.852

119

Q345B

630

24

358.655

120

Q345B

630

26

387.261

121

Q345B

630

28

415.669

122

Q345B

630

30

443.880

 

Umumnya digunakan tabel baja

TIDAK.

Kelas

jenis bahan

Diameter(mm)

Ketebalan(mm)

Berat(kg / meter)

Catatan

1

Q345B

Lurus tabung dilas

21.3

2

0.952

2

Q345B

21.3

2.75

1.258

3

Q345B

Lurus tabung dilas

26.8

2

1.223

4

Q345B

26.8

2.75

1.631

5

Q345B

Lurus tabung dilas

33.5

2

1.554

6

Q345B

33.5

3.5

2.589

7

Q345B

Lurus tabung dilas

42.3

3

2.907

8

Q345B

42.3

3.5

3.349

9

Q345B

Lurus tabung dilas

48

3

3.329

10

Q345B

48

3.5

3.841

11

Q345B

Lurus tabung dilas

60

3

4.217

12

Q345B

60

3.5

4.877

13

Q345B

Lurus tabung dilas

75.5

3

5.364

14

Q345B

75.5

4

7.053

15

Q345B

Lurus tabung dilas

88.5

4

8.335

16

Q345B

88.5

4.5

9.321

17

Q345B

Lurus tabung dilas

114

4

10.850

18

Q345B

114

4.5

12.151

19

Q345B

Lurus tabung dilas

140

4

13.415

20

Q345B

140

4.5

15.036

21

Q345B

Lurus tabung dilas

165

4

15.881

22

Q345B

165

4.5

17.811

23

Q345B

Lurus tabung dilas

180

6

25.745

24

Q345B

180

8

33.932

25

Q345B

194

5

23.304

26

Q345B

Lurus tabung dilas

194

6

27.816

27

Q345B

194

8

36.694

28

Q345B

219

5

26.386

29

Q345B

Lurus tabung dilas

219

6

31.515

30

Q345B

219

8

41.626

31

Q345B

219

10

51.539

32

Q345B

245

5

29.592

33

Q345B

Lurus tabung dilas

245

6

35.362

34

Q345B

245

8

46.755

35

Q345B

245

10

57.951

36

Q345B

273

6

39.505

37

Q345B

Lurus tabung dilas

273

8

52.279

38

Q345B

273

10

64.856

39

Q345B

Lurus tabung dilas

299

8

57.408

40

Q345B

299

10

71.267

41

Q345B

Lurus tabung dilas

325

8

62.538

42

Q345B

325

10

77.679

43

Q345B

351

8

67.667

44

Q345B

Lurus tabung dilas

351

10

84.091

45

Q345B

351

12

100.317

46

Q345B

377

8

72.796

47

Q345B

Lurus tabung dilas

377

10

90.502

48

Q345B

377

12

108.011

49

Q345B

402

8

77.728

50

Q345B

Lurus tabung dilas

402

10

96.667

51

Q345B

402

12

115.409

52

Q345B

426

10

102.586

53

Q345B

Lurus tabung dilas

426

12

122.511

54

Q345B

426

14

142.239

55

Q345B

480

10

115.902

56

Q345B

Lurus tabung dilas

480

12

138.491

57

Q345B

480

14

160.882

 

58

Q345B

Lurus tabung dilas

530

10

128.232

59

Q345B

530

12

153.287

60

Q345B

530

14

178.144

61

Q345B

Lurus tabung dilas

630

10

152.892

62

Q345B

630

12

182.879

63

Q345B

630

14

212.668

64

Q345B

630

16

242.260

 

Umumnya digunakan tabel baja

TIDAK.

Kelas

jenis bahan

tepi Lebar(mm)

Ketebalan(mm)

Panjangnya

Berat(nada)

Catatan

1

Q345B

angle Baja

63

5

6--12

4.749

2

Q345B

angle Baja

63

6

6–12

5.652

3

Q345B

angle Baja

70

5

6–12

5.299

4

Q345B

angle Baja

70

6

6--12

6.311

5

Q345B

angle Baja

75

5

6--12

5.691

6

Q345B

angle Baja

75

6

6–12

6.782

7

Q345B

angle Baja

80

6

7__12

7.253

8

Q345B

angle Baja

80

7

7--12

8.407

9

Q345B

angle Baja

90

6

7__12

8.195

10

Q345B

angle Baja

90

7

7__12

9.506

11

Q345B

angle Baja

90

8

7__12

10.802

12

Q345B

angle Baja

100

7

7__12

10.605

13

Q345B

angle Baja

100

8

7__12

12.058

14

Q345B

angle Baja

100

10

7__12

14.915

15

Q345B

angle Baja

110

7

7__12

11.704

16

Q345B

angle Baja

110

8

7--12

13.314

17

Q345B

angle Baja

110

10

7--12

16.485

18

Q345B

angle Baja

125

8

7__12

15.198

19

Q345B

angle Baja

125

10

7__12

18.840

20

Q345B

angle Baja

125

12

7、 9、 11、 12

22.420

21

Q345B

angle Baja

140

10

7__12

21.195

22

Q345B

angle Baja

140

12

7__12

25.246

23

Q345B

angle Baja

140

14

7、 9、 11、 12

29.233

24

Q345B

angle Baja

160

10

7__12

24.335

25

Q345B

angle Baja

160

12

7__12

29.014

26

Q345B

angle Baja

160

14

7__12

33.629

27

Q345B

angle Baja

160

16

7、 9、 11、 12

38.182

28

Q345B

angle Baja

180

14

7--12

38.025

29

Q345B

angle Baja

180

16

7--12

43.206

30

Q345B

angle Baja

200

16

7、 9、 12

48.230

31

Q345B

angle Baja

200

18

7、 9、 12

53.977

32

Q345B

angle Baja

200

20

7、 9、 12

59.660

33

Q345B

angle Baja

200

24

7、12

70.838

 

Desain:

ISO 9001 sertifikat 35KV-500KV tegangan tinggi saluran transmisi listrik menara baja angular 10-40MISO 9001 sertifikat 35KV-500KV tegangan tinggi saluran transmisi listrik menara baja angular 10-40MISO 9001 sertifikat 35KV-500KV tegangan tinggi saluran transmisi listrik menara baja angular 10-40M

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