755 cleaning agent surface cleaning agent, low toxicity, non-flammable, super safety. Suitable for manual work on-site role. Can be used as a surface pretreatment agent for all adhesives, which can remove all surface oil stains without leaving any traces. 790 gasket remover can remove glue, oil, paint, carbon deposits and other surface residues, no corrosion to aluminum, but should not be used on plastics, linoleum and synthetic fibers. 7649 anaerobic adhesive accelerator universal curing accelerator. It can be used in the following situations: the temperature is lower than 10 ℃, the metal surface activity is low, the filling gap is large, or the curing needs to be accelerated. 68DA thread loosening agent super permeability,