Forged seat is Stellited, ground and lapped to a mirror finish for maximum erosion resistance and long service life. It is seal-welded to the body.

• 阀座采用锻造钨铬钴合金,并研磨和叠层成镜面光洁度,抗蚀能力最强,延长了使用寿命。它是通过密封焊接到阀体上的。