Hangzhou Grace Envirotech is a joint venture in China combined with Grace Filter Manufacturing (U.K) Limited. We are the largest manufacturer of Filter Needle Felts, filter bags Dust Collectors, and dust collector parts; meanwhile, we are designing and producing dust collecting system for cement plant, power plant, as well as iron and steel plant. Our company is the largest enterprise in the dust collecting industry. Our factory is located in Qingpu Industrial Area in Shanghai, total covering 60,000M2, with over 400 workers and four big needle felt production lines. We have formed big scale production by our advanced equipment and mature technology. We design dust collecting system, produce filter bags for customers and users, and provide site technology consultant service, design, production, as well as after-sale service. Our products key words : filter bags ,filter bag ,Nomex filter bag ,Ryton filter bags ,PTFE filter bags,P84 filter bag ,fiber glass filter bag ,dust collector ,pulse jet dust collector ,baghouse dust collector ,dust filter ,dust collection,bag filter ,industrial filter felt ,filter cloth ,needle felt ,filter fabrics,dust collecting system,dust collection system ,filter bag manufacturer,Kevlar Belt ,Kevlar roller,Airslide Belt.