hiwa fittings(www.hiwaflow.com), the professional pipe fittings manufacturer, which belong to huihua valve co ltd---the ce,wras and sgs iso9001 approved valve and fittings manufacturers in china. our main line as the following:

1.rubber expansion joints
single sphere rubber expansion joint, twin sphere rubber expansion joint, , spool type rubber expansion joint, heavy duty rubber expansion joint with din,bs,en,jis,ansi flanged drilling and twin sphere union rubber expansion joint t with bsp or npt threaded.

2.universal flange adaptor, universal coupling, gibault joint, stepped coupling, dismantling joint, pe quick adaptor, pvc quick adaptor, saddle clamp