... copper-zinc alloy, housings made from carbon steel.We supply PHS series including:POS 5, POS 6, POS8,POS 10 ... POS22,POS25,POS28,POS30PHSA series products datasheet: Related products series including:,PHSA,POSA,PHSA Series;PHS Series; Who we are?We are Zhe Jiang ... Sinier Guide Co., Ltd, we produce cold ...