stamping galvanized tube for Poultry feeding systems Diametre: 45mm,44.5mm, 25mm, 26.7mm, 60mm Thickness: 0. ... 9mm to 2.0mm Stamping galvanized steel pipe for Poultry feeding systems Our company was established in 1999, mainly produces high ... pipe, stamping steel tube is mainly used in Poultry feeding systems:Standard: GB, DIN, ASTM.Certification: SGS, ISO9001Surface Treatment: Pre-Galvanized ...