Standard: BS, JIS, GB, DIN Grade: A53-A369 Thickness: 1 - 20 mm BS1387-1985, DIN2440/2441, GB/T3091-2001, and ASTM A53,EN10255/EN10240 1)galvanized steel pipe a) Material: Q195, Q215, Q235,Q345, STK500 b) Standards: BS1387-1985, DIN2440/2441, GB/T3091-2001, and ASTM A53,EN10255/EN10240 c) Used for low pressure liquid delivery such as water, gas, and oil