国产精品三级国产电影_成人又黄又爽又色的网站_2021亚洲国产精品无码_国产成人免费视频综合色

單位：Kg/m

壁 厚

外 徑

3

3.5

4

4.5

5

5.5

6

32

2.146

2.460

2.762

3.052

3.329

3.594

3.847

38

2.589

2.978

3.354

3.718

4.069

4.408

4.735

42

2.885

3.323

3.749

4.162

4.562

4.951

5.327

45

3.107

3.582

4.044

4.495

4.932

5.358

5.771

50

3.477

4.014

4.538

5.049

5.549

6.036

6.511

54

3.773

4.359

4.932

5.493

6.042

6.578

7.103

57

3.995

4.618

5.228

5.826

6.412

6.985

7.546

60

4.217

4.877

5.524

6.159

6.782

7.392

7.990

63.5

4.476

5.179

5.869

6.548

7.214

7.867

8.508

68

4.809

5.567

6.313

7.047

7.768

8.477

9.174

70

4.957

5.740

6.511

7.269

8.015

8.749

9.470

73

5.179

5.999

6.807

7.602

8.385

9.156

9.914

76

5.401

6.258

7.103

7.935

8.755

9.563

10.358

89

6.363

7.380

8.385

9.378

10.358

11.326

12.281

108

7.768

9.020

10.259

11.486

12.701

13.903

15.093

133

11.178

12.725

14.261

15.783

17.294

18.792