... MATERIAL STRICTLY MEET AS PER ASTM STANARD ) STAINLESS STEEL PIPE MARKING STAINLESS STEEL PIPE SERIES (ANSI B 36.10 ; 36.19) ... steel products. We mainly produce stainless steel pipes, rods, bars, pipe fittings, and export to USA, Chile, Brazil, Canada, Germany, ... , complete inspection method make it go through the ISO 9000 quality system.Wenzhou Longwan Nanyang Steel Pipe Factory is our earliest ...