... , TP316H,TP321 321H,347H,310Setc We are Zhejiang Guobang Steel Co., Ltd, located in Songyang Industrial Zone, Zhejiang ... range includes but not limited to the following:1) Stainless steel pipe &tubeManufacturing Standard: A213, A269,A312,A334,A376, ... TP316H,TP321 321H,347H,310Setc2) Bright Annealed Stainless Steel Tube & precision tubesDuplex Stainless Steel Pipes & Tubes Stainless round bars, raw pipe ...