... ,it could be used in high temperature .and it won't be oxygened . SEB-B-1 silencer Pivoted and Plated the Nickel WhollyMaterial ... B-1-6,SEB-B-1-8,SEB-B-1-10,SEB-B-1-15,SEB-B-1-20,SEB-B-1-25Thread Size:1/8",1/ ... 4",3/8",1/2",3/4",1 ... plated, that's OK,Our products mainly used in many large equipments, and be used for refuse the dusty,oil,air ...