Wenzhou Hongcheng Vacuum Coating Material Co., Ltd. was established in 2007, located in Wenzhou City, Zhejiang Province. Mainly engaged in: 1.Evaporation coating materials: tungsten stranded wire, , high purity aluminum wire, tungsten boat, molybdenum Boat, white chrome wire, copper wire, alloy wire, mercury bar, chrome powder, SGS certification. 2.Optical coating materials: silicon monoxide, silicon dioxide, zinc sulfide, titanium dioxide, aluminum oxide, magnesium fluoride, zirconium dioxide, iron oxide, crystal oscillator. 3.Vacuum coating machine accessories: regulation, vacuum sealing, vacuum sealing, high temperature resistant silicone sealing ring, diffusion pump electric furnace wire. 4.Oil: Dalian 3# diffusion pump oil, Great Wall 100# vacuum pump oil, 150# vacuum pump oil. 5. Paint toner: domestic water-based dye powder. UV light-curing paint, 563 heat-curing paint, UV spray special color fine.