... equipment. 3,competitive price . Specifications600 series stainless steel tube /bright surface Size:OD:20.34-610MM,W.T:5-80mm,length ... 316L,317L,etc600series welded stainless steel tube stainless steel pipe/bright surface1.Type:seamless pipes,welded pipes ,rectangular pipes , ... seamless tubes.2.Process methods: cold draw and cold rolled3.surface finish : annealing /polish4.alloy or stainless steel 5.It ...