" Galvanized Steel Pipe Detailed Description 1) Outer Diameter: 20 ~ 219mm 2) Wall Thickness: 0.8~ 8mm 3) Spec.: Q195, Q215, Q235, Q345 4) Standards: ASTM-A53A, BS1387-1985, GB/ T3091-2001. 5) Steel Pipe:  a) GTC ( galvanized threaded and coupling) steel pipe: DN15-DN200     ( NB1/ 2" " -NB8" " )  b) GPE ( galvanized plain end) steel pipe: DN15-DN200     c) Grooved steel pipe: DN15-DN200 ( NB1/ 2" " -NB8" " )  d) Used for low pressure liquid delivery such as water, gas, and oil  e) The Galvanized Steel Pipe apply to various anticorrosive pipes 6) Packing: According to our clients' demand for the Galvanized Steel Pipe