This type is Stem Three-way Ball . We can do the size DN25 ~ DN600. For the pressure PN16 ~ PN40 . We can do the ball body material ASTM A216, A351 CF8M CF3M CN-7M, A352LCB and Monel . For the coating we can do NItridation, Nickel Plating, Chrome Plating, Spray Tunement Carbide, Spray Stellite and Spray Nickel Alloy .