... net Multi-wall paper bagUsage:Mainly used as the reductant for chemical plating. A dense and uniform nickel phosphorus film can ... of deep-hollows, The surface of non-metals such as plastic, ceramics, glass etc. The film possess a good ... used as interface activator.. 3, M.W. moderater thermostablizer for synthetic resins and additive for foods The reductant for chemical plating, Sodium Hypophosphate