The copper fittings include copper coupling (no-stop coupling,
staked coupling, rolled-stop coupling, reducing coupling), copper
elbow (*0 degree short radius elbow, long radius elbow, *5 degree
elbow), copper tee (equal tee, reducing tee), copper suction
P-Trap, return bend, copper cap, copper cross over coupling, copper
half-cross over coupling, copper adaptor, etc, be using for the
refrigeration and air conditioning system.
Producing according to the Standard ASME B*6.*2 or EN***4.