... Shape: round or hexagon typeA completed union was composed of nut,liner,male,seal ring. We also supply ... pipe fittings as well as OEM services over 15 years. Occupies area of over 5,000 s.q.m and the ... new plant 15,000 s.q.m. under construction. ... injection, Die casting, press stamp, we introduced plenty of advanced devices from abroad such as Japan Mazak brand CNC ...