Zhejiang Dada Stainless Steel Co.,Ltd manufactures stainless steel seamless and welded tubes&pipes with 10000 tons production capability for annual ,Website:http://www.ddsstube.com,comprise grade 304L/ 316L/ 321/ 317L/ S31803,etc.The production is in compliance with standards of GB,ASTM,ASME, EN,DIN,JIS and ISO etc.With the “Quality-first and Credit-based”corporate philosophy ,our products provide excellent corrosion for use in extreme environments.we provide high quality products and services for all clients