1.filter bags materials : fiberglass , polyester , nomex . PTFE felt 2.filter cages (stianless steel and carbon steel) We, Yingkou Chuangshiji (CSJ) Filter Materials Co.,Ltd, which joint with Ameica company, can provide engineering and drawings for a dust collection filter bags for your application on an engineering basis. CSJ also manufacture PTFE products, such as complex fiber, carrier fiber, ...