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.是什么意思_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.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句