... SEB-A-1-6,SEB-A-1-8,SEB-A-1-10,SEB-A-1-15,SEB-A-1-20,SEB-A-1-25Thread Size:1/8",1/4",3/8",1/2",3/4",1" ... this kind of products can be used on the equipments in order to reduce the noise and filtering the dusty ... or the air or oil or water and so on. ... equipments at the same time, to reduce the noise is other function. SEB-A-1 Sintered and Plate The Nickel ...