Z60 SPCC 0.6MM Size Galvanized Steel Coil Metal Roofing Steel Coil
There are two types of zinc plating solutions: cyanide baths and cyanide-free baths. The cyanide bath is divided into microcyanide, low cyanide, medium cyanide, and high cyanide. Cyanide-free baths include alkaline zincate baths, ammonium salt baths, sulfate baths, and ammonia-free chloride baths. The cyanide zinc plating solution has good uniform plating ability, and the obtained coating is smooth and delicate, and has been used for a long time in production. However, due to the high toxicity of cyanide and serious environmental pollution, low-cyanide, micro-cyanide and cyanide-free zinc plating solutions have been used in recent years.
