-
Seat face Stellited, ground and lapped to a mirror finish.
钨铬钴合金面阀座，经过研磨抛光达到镜面抛光度。
youdao
-
Seat face Stellited, ground and lapped to a mirror finish.
阀座面为钨铬钴合金，经过研磨抛光达到镜面光洁度。
youdao
-
Seat face Stellited, ground and lapped to a mirror finish.
阀座面为钨铬钴合金，经过研磨抛光达到镜面光洁度。
youdao