For years GDSF has been dedicated in developing fabrication of pressure vessels made of special materials and has achieved good results. Up to 2005 GDSF has designed and fabricated corrosion resistant equipment made of titanium and its alloy, nickel and its alloy, titanium-steel clad pate, nickel-steel clad plate, nickel-based alloy-steel clad plate, titanium lining, nickel lining, super stainless steel and duplex steel etc. (that is 904L, C276, Inconel 600, 625, 2205, 31254, and TA2 etc.). The output is in total weight of thousands of tons.
   Its main application as followings:
　　1. Basic inorganic chemistry:
　　Chloric alkali, Soda ash, Vacuum refined salt, pesticide, chlorine, bromine(Br.), Iodine(I.) and its chemical compound, inorganic salts, nitric acid, sulphuric acid, hydrochloric acid, aqua regia, etc.
　　2. Petroleum and organic chemistry:
　　Oil refining, organic chemistry, formic acid , acetic acid, PTA, CPE, TDI, MDI, epoxy propane, methane chloride, carrene, trichloroethane, trichloroethylene, chlorethanol, chlorobenzene, benzyl chloride. acetaldehyde, oxaldehyde, chloramines, acrylonitrile, polyester, colourant, and its intermediates.
　　3. Light industrial and genetic engineering:
　　Paper pump making, dope dyeing, food engineering, fine chemistry, biological pharmaceutical, etc.
　　Main equipment:all kinds of heat exchangers, evaporators, reactors, towers, storage tanks, welded joint, elbow, tee and The company also can provide the technical consultation about selecting special metal material.