We are one professional filter maker and supplier based in zhangjiagang china our company is zhangjiagang air environmental protection equipment co,. ltd. locates in zhangjiagang, an environmental protection model city in china. our major products are: filter, filter bags, dust collectors, hepa, panel filter, hvac, pleated filter air filter cartridges, that are widely applied to dust control equipment, dust collectors, self clean filters system for gas turbine and air compressor, gt and air com