Main varieties include E/F coupler, reducer, tee, end cap, tapping tee, and E/F repair saddle and elbows in various angles. Fittings are in a complete range with complete specifications.

The utility model is composed of a bottle stopper perforator, a triplet with plus drug, a drip kettle, a control clamp, a reducer union, scalp acupuncture, a thick and a fine conduit pipe.