日韩好精品视频一区二区播放_高跟丝袜性交在线播放_91AV不卡在线观看免费_91精品口爆吞精视频

無(wú)縫鋼管GB/T8162-1999;GB/T8163-1999

10、20、35、45、Q345B ( GB/T8162-1999 )

6*0.5-1-2

60*4-4.5-5-6-7-8-9-10-12-14

203*6-7-8-10-12-14-16-18-20-22
203*25-28-30-35-40-45

8*1-1.5-2-3

63.5*4-5-6-7-8-9-10-12-14

219*6-7-8-10-12-14-18-20-22-25
219*28-30-35-40-45-50-60

10*1-1.5-2-3

68*4-4.5-5.5-7-8-9-10-12-14-16

245*7-8-9-10-12-14-16-18-20-22
245*25-27-28-30-32-35-45-50-60

12*1-1.5-2-2.3-3

70*4-4.5-5-6-7-8-9-12-15-16

273*7-8-9-10-12-14-16-18-20-22-24
273*25-27-28-30-32-35-40-45-50-60

14*1.5-2-2.5-3

73*4-4.5-5-6-7-8-9-10-12-14-15

299*8-9-10-12-14-15-16-18-20-22-25
299*26-28-30-32-35-40-45-50-60

16*1.5-2-2.5-3-4

76*4-4.5-5-6-7-8-9
76*10-12-14-16-18-20

325*8-9-10-11-12-14-15-16-18-20-22-25
325*26-28-30-32-35-40-45-50-60-65

18*2-2.5-3-4-5

80*4-5-6-8-10-12-14
80*16-18-20-22-25

351*10-11-12-14-15-16-18-20-22-25
351*28-30-32-34-35-40-45-50-60-65

20*2-2.5-3-5

83*4-4.5-5-6-7-8-9-10
83*12-14-16-20-22-24

377*10-11-12-13-15-16-18-20-22-25
377*28-30-32-35-40-45-50-60-65

22*2-3-4-5

89*4.5*5-6-8--10-12-14
89*16-18-20-25

402*10-11-12-13-14-15-16-18-20-22-25
402*28-30-32-35-40-45-60-65

24*2.5-3-4-5-6

95*4.5-6-8-10-12
95*14-16-20-22

426*10-11-12-13-14-15-16-18-20-22-24
426*25-28-30-32-35-40-45-50-60-65-70

25*2.5-3-4-5-6

102*4.5-5-6-7-8-10-12
102*14-16-18-20-22-25

450*10-11-12-14-16-17-18-20-22-24-25
450*28-30-32-35-40-42-50-60-65-70

28*3-3.5-4-5-6

108*4.5-5-6-8-10-12-14
108*16-18-22-25-28

480*10-11-12-14-15-16-17-18-20-22-24
480*25-28-30-32-35-40-45-50-65-70

30*3-3.5-4-5-6

114*4.5-5-6-7-8-10-12
114*14-18-20-25-28

508*10-12-13-14-16-18-20-22-24-25-28
508*30-35-38-40-42-48-50-60-70

34*3.5-4-5-6-8

121*5-6-7-8-10-12-16
121*18-20-22-25-30

510*10-12-14-16-18-20-22-24-25-28-30
510*35-38-40-42-48-60-65-70

36*3.5-5-6-8

127*4.5-5-6-8-10-12-14
127*16-18-20-25-28-30

530*10-12-14-16-18-20-22-25-28-30
530*35-40-45-50-60-65-70-80

38*3-3.5-5-6-7-8-9

133*4.5-5-6-6-7-10-12-14-15
133*16-18-20-22-24-25-28-30

560*12-14-16-18-20-22-25-28-30-35
560*40-45-50-60-65-70-80

42*3-3.5-4-5-6-7-8-9

140*5-6-8-10-12-14-16-18-20
140*22-25-28-30-32

610*12-14-16-18-20-22-24-26-28-30
610*35-40-45-50-60-70-80-85

45*3.5-4-5-6-7-8-9-10

146*5-6-8-10-12-14-16-18-20
146*22-25-28-30-32-35

630*12-14-16-18-20-22-24-26-28-30
630*35-40-45-50-60-70-80-85

48*3-3.5-4-5-6-7-8-9-10

152*5-6-8-10-12-14-16-18-20
152*22-25-28-30-35-40

720*14-18-20-30-35-40-50-60-80-85

51*3.5-4-5-6-7-8-9-10

159*4.5-5-6-8-10--12-14-16
159*18-20-22-25-28-30-32-35-40

760*20-30-40-50-60-70

54*3.5-4-5-6-7-8-9-10

168*5-6-8-10-12-14-16-18-20
168*22-25-28-30-32-35

850*20-25-30-35-40-45-50-60-70

56*3.5-4-5-6-7-8-9-10

180*6-7-8-10-12-14-16-18-20
180*22-25-26-28-30-35-40

960*30-40-50-60-80

57*3.5-4-5-6-7-8-9-10-12

194*6-7-8-10-12-14-16-18-20
194*22-25-28-30-35-40

1020*50-60-80-100