Pump, Valve, Metal seal, Compressor,Agitator,Turbine,Injection molding machines,Spare parts and their assembly and test. Research and development of electronic component. Wholesale and retail of ordinary machinery, electronics, communication equipment, metal material (not including precious metal), auto parts, products used for industrial and mineral fields (excluding those need special permit), computer and its accessory, refrigeration equipment, instrument and meters. Social economy consulting (not including business need to be licensed), wholesale and retails of chemicals (excluding hazardous chemicals and precursor chemicals (no storage facility), which is detailed in No.H00013 (2012) of dangerous chemical business certificate.