... 2.Copper content:54-58% 3.Thread type:ISO,DIN,BS,JIS,ANSI,GB 4.Thread spec.:G,R,NPT 5.Size ... Grade: 1.6MPa.3. Design standard: GB/T8464-20084. Pipe thread standard: ISO2285. Connection: Hot Welding.6. Size: 20mm, 25mm, 32mm ... .7. Piping system for other industries and agriculture. High quality double-head PPR ball valve