321 stainless steel tubes 1.Grade:304,304L,316, ... . 2.Standards:ASTM,JIS,DIN,GB ,etc 321 stainless steel tubesFeatures:1) pipe diameter : 6mm-630mm pipe thickness ... /ASTM/ASME/DIN/JIS and etc4) Applications range: for use in the petroleum, chemical, medical equipment, boiler ... Co., LtdCountry: ChinaCompany Address: A Dist.33,Steel Market,Fenghuang Industry Park,Dongchangfu Dist.,LiaochengMobile:0086- ...