... 30mm Standard: ASTM,JIS,GB,DIN,EN Yuanlitai Steel PIpe stainless steel welded pipe Material:304,316,316l,321.ect ... 20-30days. Finish:pickled/polished MOQ:500KG Stainless steel pipe manufacture.we specialize in stainless steel pipes for several years with top quality , ... ,16Mn,Q345GB6479-200025-426×6-40Fertilizer equipment, pipelineStainless steel pipe301 302 304 304L 316 316LGB/T14976-2002 GB13296 ...