201 SGS stainless steel tube Manufacturer,ISO,ASTM A554 Raw material from ... 201 SGS stainless steel tube About usOur company covers an area of 100,000 square meters, and holds superior ... specialists. 1. The production scale Stainless steel welded tube is 8,000 tons per month2. Manufacturing Standard ASTM ... 304, AISI 304L, AISI 316, AISI 316L.5. Tube surface Grit:180,240,320. Hairline:180,240,320. ...