日韩免费精品视频_午夜精品久久久99热福利_欧美高清性猛交_欧美一区二区视频在线_成人av资源_97av在线影院_久久66热这里只有精品_亚洲free嫩bbb_国产精品日本精品_日韩av一区二区三区在线观看

無縫鋼管   20#  GB/T8163-2008    159*8      5900元/噸      

20#流體管

流體管

流體管
規格	規格	規格
12×1	89×4.5-8-10-12-14-16-18-20	245×25-28-30-34-40
14×1.5-2.5-3	95×4.5-6-8-10-12-14-16-20	273×7-9-12-15-18-20-25
16×1.5-2.5-4	102×4.5-5-6-7-8-10-12-14-16-20	273×30-35-38-40-45-50
18×2.3-4-5	108×4.5-5-6-7-8-10-12-14-18-20-22	299×8-12-16-20-24-28
20×2.5-3-5	114×4.5-5-6-7-8-10-12-14-18-20	299×30-32-36-38-40-45
24×2.5-3-4-5-6	121×4.5-5-6-7-8-10-12-14-16-20	325×8-12-14-18-38-42
25×2.5-3-4-5-6	127×4.5-5-6-7-8-10-12-14-16-20	325×28-32-34-38-42
28×3-3.5-4-5-6	133×4.5-6-8-12-14-16-18-20-25-30	351×10-16-20-25-40
32×3.5-4-5-6-8	140×5-6-7-8-9-10-12-14-16-20-22	355×6-18-20-25-30-40/52
34×4-5-6-8	146×4.5-6-8-12-14-16-18-20-25-30	377×8-12-15-20-24-28
36×3.5-5-6-8	152×4.5-6-8-12-14-16-18-20-25-30	377×30-37-40-45-50
38×4-5-6-7-8-9-10	159×4.5-6-10-12-14	402×10-15-20-25-30-35
39×3.5-5-8-10	159×16-18-20-22-25-30	406×10-20-25-28-35-40
42×3.5-4-5-6-7-8-9-10	168×8-10-12-14-20-25-30-35	426×10-12-14-16-20-25-30-35-40
45×3.5-4-5-6-7-8-9	180×8-12-16-25-30	450×10-12-14-16-20-25-34-40-50
48×3.5-4-5-6-7-8-9-10	180×32-34-38-40-45-50	480×10-12-14-16-18-20-25-30-40
51×3.5-4-5-6-7-8-9-10	194×6-8-12-16-20-25-30-40-45-50	500×10-12-14-16-20-25-34-40-50
56×3.5-4-5-6-7-8-9-10	203×6-7-10-15-20-25-30	510×10-12-14-16-20-25-34-40-50
57×3.5-5-6-7-8-9-10-12	203×32-36-40-45-50	530×10-12-14-16-18-20-30-40
60×3.5-4.5-5-6-7-8-9-12-14	219×6-8-12-16-18-20-25	560×10-14-16-20-25-30-40-50-60
63×3.5-4.5-5-6-7-8-9-10-12-14	219×30-40-45-50-55	580×10-14-16-20-30-40-50-70
68×4-4.5-5-6-7-8-9-10-12-14-16	219×55-58-60-65-70	600×10-14-18-25-20-30-50-60
70×4-4.5-5-6-7-8-9-10-12-15-16	245×8-10-14-17-20-22	610×10-14-18-25-20-30-50-60
73×4-4.5-5-6-7-8-9-10-12-15	245×25-28-30-34-40	620×14-20-30-35-45-50-60
76×4-4.5-5-6-7-8-9-10-12-14	273×7-9-12-15-18-20-25	630×10-20-30-40-55-75
83×4.5-5-10-12-14-16-18-20