... Used on oil,gas,water Best factory knitted fabric 1. Material : stainless steel wire , galvanized wire ,redrawing wire, copper wire ,nickel ... : Big hole and holes arranged cross 5. Surface treatment for filter : Flat and crimped ,if wavy should provide crimped width and ... , gas water separation, water-oil separation (3) All kinds of filter element which used on engine on car, tractor (4) Used on ...