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

159

13.422

15.290

17.146

18.989

20.821

22.639

219

18.601

21.209

23.805

26.388

28.959

31.517

273

23.262

26.536

29.797

33.046

36.283

39.508

325

27.750

31.665

35.568

39.458

43.337

47.202

355

38.897

43.158

47.406

51.641

377

41.339

45.871

50.390

54.897

426

46.777

51.913

57.036

62.147

450

480