Beijing Liansheng Guoneng Science and Technology Co.,Ltd. Is mainly engaged in selling Monel,hastelloy,duplex stainless steel,etc.special alloy materials and manufacturing welding pipe,pipe fittings,flanges,fasteners,gaskets and welding wire in carbon steel,alloy steel,stainless steel.Also we can supply Internal and external epoxy coating anti-corrosive piping products and do anti-corrosive treatment to pipe and pipe fittings as per clients’demands.Customized corrosion-resistant cladding steel pipe is available.We take advanced hydraulic cladding technology to clad a certain thickness of alloy steel material on the inner surface of carbon steel base pipe.Such pipes have very high quality corrosion resistance and mechanical properties,can meet the clients’special working conditions and reduce the purchasing cost a lot.We provide a one-stop source service for domestic and foreign clients over years.