"seamless cold rolled steel tubes"
冷たい管をH8 ST45 1045のDIN 2391砥石で研ぐE355 ST52の水圧シリンダ-引き分けの継ぎ目が無い
E355 ST52 H8 ST45 1045 DIN 2391 Cold Drawn Seamless Hydraulic Cylinder Honing Pipe In the standard it is DIN2391-1. The raw materials of the hydraulic steel pipes have undergone precision drawing, non-oxidative bright heat treatment (NBK state), non-destructive testing, the inner holes of the steel pipes have been washed and pickled under high pressure, the inner and outer walls of the steel pipes have been treated with anti-rust oil, and both ends are sealed for dust-proof
ASTM A672 ERW穏やかなカーボン管の造船業のためのエポキシのコーティングEN 10217
1/2”ASTM A672 EN 10217 ERW Mild Carbon Pipe Epoxy Coating For Shipbuilding Quick Detail: Standard: EN 10305-2 Size:(mm) Out Dimensions: 6mm -350 mm Wall Thickness: 0.8mm –35 mm Length: Fixed(6m,9m,12,24m) or normal length(5-12m) Description: An ERW tube is a tube formed by resistance welding. Unlike seamless steel pipe, its cross section has welded joints. Because the process involved in producing ERW steel pipe is very simple, it greatly improves the production efficiency
