Huanyu is a specialized manufacturer of pipe fitting moulds and dies , for PVC-U, PP-R, PE,ABS water supply and drainage pipes, plastic valves and fittings , and insulated electric conduits and fittings for installation in buildings. 

Founded in 1995, HuanYu has formed its own independent intellectual property rights as well.

At the same time, Huanyu also produce hydraulic cylinders for cavity core & shape core circumrotation on moulds, which have much safer assembly form and satisfy requirements of different arrangements. The pressure of cylinders can act directly in different kinds of work mechanism, such as compaction, synchronization and circumrotation, and can also transfer power and movement by lever, connection lever and rack mechanism, such as discharging, swinging movement, clamping, gyration and so on.