The main products are: 1., Optical coating materials (purity: 99.9% -99.9999%) 1. Oxide: SiO SiO, Hafnium dioxide HfO2, Zirconia ZrO2, titanium dioxide, TiO2, a titanium dioxide TiO, dioxide Silicon SiO2, titanium oxide Ti2O3, five titanium oxide Ti3O5, five tantalum oxide Ta2O5, five niobium oxide Nb2O5, aluminum oxide Al2O3, scandium oxide Sc2O3, Indium Oxide In2O3, cerium dioxide CeO2, magnesium oxide MgO, tungsten trioxide WO3, samarium oxide Sm2O3, neodymium oxide Nd2O3, bismuth oxide Bi2O3, praseodymium oxide Pr6O11, antimony oxide Sb2O3, vanadium oxide V2O5, nickel oxide NiO, zinc oxide ZnO, iron oxide Fe2O3, chromium oxide Cr2O3, oxidation CuO, such as copper. 2. Fluoride: magnesium fluoride MgF2, ytterbium fluoride YbF3, yttrium fluoride YF3, dysprosium fluoride DyF3, neodymium fluoride NdF3, fluoride-doped ErF3, potassium fluoride KF, strontium fluoride SrF2, samarium fluoride SmF3, Sodium fluoride NaF, barium fluoride BaF2, cerium fluoride CeF3, such as lead fluoride. 4. Mixture: mixture of zirconia dioxide, zirconium oxide mixture of tantalum oxide, tantalum oxide titanium dioxide mixture, yttria zirconia mixture, niobium oxide titanium dioxide mixture, mixture of alumina zirconia, magnesium oxide mixture of aluminum oxide mixture of indium tin oxide, indium oxide tin oxide mixture, cerium fluoride, such as calcium fluoride mixture mixture 3. metal categories: Wire of high-purity (5N) Al, high-pure tablets of Al, high - aluminum film Al, high-aluminum columns, high-purity chromium tablets, high-purity chromium powder. 4, the target groups: the target of chromium, nickel target, zinc target, the target of indium, aluminum target, the target of Ni-Cr alloy, titanium aluminum target, zirconium target, Zn-Al target, etc., 5, wire type; have silver, copper wire , zinc wire, titanium wire, tin wire, indium wire, Wire, niobium wire, tantalum wire, wire 1 #, 304 # wire, etc.