... 304L,321,F321,316,316L 4.Standard:DIN,AISI,,ASTM,JIS,EN 5.Supply:150000ton/year Product: Industrial Stainless Steel Seamless/Welded Pipe ... Material Grade: 304, 304L, 316, 316L, 321, 317, 317L, etc. Outside ... on-time delivery, competitive price and best service! 304/316/316L/304L Stainless Steel Pipe-Seamless&Welded