welded stainless steel pipe: 1)ISO9001,PED 2)Direct manufacturer 3)Top quality 4)Export widely to USA,EU,Canada,Japan,etc PENGLAI ... manufacture the stainless steel pipe. In order to ensure the quality of products, the company also owns a complete set of ... gained the ISO9001:2008 and the Lloyd PED Certification and has been strictly conforming to the requirements of these quality management systems ...