Ethylene resins, epoxy coal asphalt, 3301 resins, 907th high temperature, glucose glass slurry sludge, glass sheet anti-corrosion coatings, pyrotechnic sludge, fire-proof coatings, zinc-rich paints, unsaturated resins, epoxy coatings, diluents, catalysts, solidants, epoxy floor paints; work on anti-corrosive temperature works. (projects subject to legal approval may not operate without the approval of the relevant department)