... 3.scientific design,full sizes 4.Fast delivery Filter for check valve,stainless sleeve filterSpecifications:1.Stainless sleeve:302,304, ... and accessories.The production contains brass manifold,ball valve,filter,check valve,radiator valve,brass fitting,overlap-welded and butt- ... hand,our company equip ourselves with advanced producing and testing machine,such as CNC lathes and full automatic machines,to ...