Place of Origin : Guangzhou,China  
                                                         
Material:cellulose substrate/spunboned polyester substrate 
Standard construction: 
1.Unique plastic coating anti-rust caps and metal frame 
2.Wide pleat spacing, easy-cleaning design 
3.Unique plastic rotation, effectively separate the pleats, protect the filter media from abrasion by inner mesh 
4.Specific gasket 
Mainly used in the plasma laser cutting of large-scale steel, shipbuilding, automotive, metal processing industry,welding smoke, thermal spray industry and other special con