our products have FM ,UL and ISO 9000 certificate . widely used in beijing ,shanghai ,guanzhou high building .

LIGHTWEIGHT COUPLINGSBrief introduction  When low to moderate pressures are anticipated,or when weight considerations becoming significant,the fig 10 is recommended.Pressures up to 500psi,depending on size may be handled,Special coating or hot dip galvanzing may be optionally ordered.Size from 11/4-3INCH ,the max work press is 4.4MP;the 4INCH is 3.5MP ;size from 5-12INCH ,the max work press is 2.8MP;size from 14-24INCH ,the max work press is 2.1MP.

Our malleable iron pipe fittings are made of raw materials of high quality through casting and precision process by automatic pattern extruding machine. Being subjected to close check throughout the production on all measuring tools, cutters and other instruments our pipe fittings are ensured for their durability, even surface lustre, geometrical precision in size and strong rust resistance, guaranteed accuracy and convenience in installation and interchangeability.