“硬面”造句

阀座环–硬面阀座环焊入阀体内.
Seat Ring – hard faced seat rings are welded to body.

整体后座–硬面,使用寿命最长.
Integral Backseat – hard faced for maximum backseat life.

带有H的阀内件型号具有钴合金硬面阀座环表面.
Trim numbers with H have cobalt alloy hard faced seat ring facing.