Liquid membrane filtration or purification device and machine parts ,made of fluorine polymer thickness less than 140 microns filtration or purification;Purification machines and apparatus parts,with gas filter equipment stainless steel shell, entrance pi
Liquid membrane filtration or purification device and machine parts ,made of fluorine polymer thickness less than 140 microns filtration or purification;Purification machines and apparatus parts,with gas filter equipment stainless steel shell, entrance pi