stainless steel seamless pipe 1.Type:round,square,rectangular 2.Standard:ASTM,A554,A269 3.Grade:201,304,202,301,316,316L ss seamless pipe/tube ISO9001:2000 ASTM/AISI standard Grade 304,316L,321,310S,201,202etc Cold drawn,fully annealedOur products are widely used in trades of petroleum, smelting, food, water conservancy, electric power, chemical industry, chemical fiber and medical machinery etc. ...