Shandong Laiwu Huifeng Welding industry Co.,Ltd. is a professional production of submerged arc, electroslag welding and welding with wire, flux factory, located in Laiwu City High-tech Economic Development Zone, is located in bleomycin high-speed, high-speed convergence of Taylor Department, the traffic is very convenient. Strong technical force, reliable quality, product range, with the exception of the production of a variety of commonly used melting flux HJ431, HJ330, HJ350, HJ251, HJ260, HJ107, etc. In particular, the introduction of our own R & D JN431, JN101, JN301, JN106, JN108, JN109 a variety of new smelting flux. Widely used in low-carbon ……