we are a professional company specialize in producing various stainless steel seamless pipe, welding pipe, stainless steel valve, pipe fittings and flange. Our company can supply various material grade which include 201, 202, 304, 304L, 316, 316l,TP321,310S,347H, 317L. Wenzhou zhengbiao stainless steel co.,ltd has more than 60kinds of steel materials, more than 1000 kinds of standard steel pipes manufacturing capacity.The cold drawing workshop can produce the ranges for products:2mm to 800mm.SCH0.6mm to 80mm. ASTM A312,Size from 6mm to 800mm. thickness from 0.6mm to 80mm.Material:201,202,304,304l,316,316l,tp321,310s,tp347