copper access valve,check valve with check or without check,with head part or without part check valve,access valve,charging valve , refrigeration ... such as skinpacking,plastic bags,etc.Access valve,Refrigeration parts for refrigerator,air conditioner,and ... 70mm,80mm,90mm,100mm,120mm.......with check or without check, with head part or without head ... " Single Skinpacking Refrigeration Copper Check Valve