- Hiwa Fittings
- Main products: Rubber Expansion Joints, Universal Flange Adaptor, Universal Coupling, Dismantling Joint, PE Quick Adaptor, PVC Quick Adaptor, Saddle Clamp, Fittings for uPVC pipes，ANSI B16.9 Butt-Welded Pipe Fittings, Cast and Forged Flanges
