Chengdu Yushi Electronic Materials Co., Ltd.（Chengdu YU Vacuum Co., Ltd.） was established in 2001, which is formally known as a main vacuum coating products supplier in China. We specialize in manufacturing of vacuum metalizing materials such as tungsten evaporation filament (stranded tungsten wire heater for vacuum coating), aluminum wire/plate, vacuum pump oil, diffusion pump oil, vacuum gauge and other vacuum metalizing related products.