Galvanized Pipe: Standards: BS1387-1985, GB/T3091-2001 and ASTM A53 Material: Q195, Q215, Q235 Best price with high quality . Galvanized PipeCommodity: Galvanized Steel Pipe Features: 1. outer diameter: 20--219mm2. wall thickness: 0.8--8mm3. Spec. : Q195, Q215, Q235, Q3454. standards: ASTM-A53A, BS1387-1985, GB/T3091-2001 5. steel pipe: a) GTC(galvanized threaded and coupling) steel pipe: DN15- ...