stainless steel Gas-liquid filter material:ss,galvanized wire,bronze wire,etc. filter:hepa filter certificated:ISO9000:2001 stainless steel Gas-liquid filter Material: stainless steel(AISI 201,202,301,302,304,304L,321,316,316L)galvanized wire, bronze wire, phosphor wire, nickel wire, PP, PC, PE, PVC, PTFE, etc. Usage : the products are made in different type for the progress of distillation, ...