copper access valve,check valve with check or without check,with head part or without part check valve,access valve,charging valve , refrigeration part ... ,and auto air conditioner industriesTube can be soft or hard,tube length,Different specifications availablesoledr tube:1/ ... 60mm,70mm,80mm,90mm,100mm,120mm.......with check or without check, with head part or without head partWe need your detailed ...