... MKCsize:1/4", 3/8" ,1/2" material: brass body , brass ball , aluminum handle .brass mini valve code ... :1/4", 3/8" ,1/2"material: brass body , brass ball , aluminum handle NO.ComponentMaterial1BodyBrass2BonnetBrass3BallBrass4Seat RingTeflon5O-RingNBR6StemBrass7HandleAluminum8ScrewSteel ... water &non-causticity liquid ,&saturated steam. FEATURES: Ball valve are bottom loaded stem designed , this anti- ...