The pitting corrosion of the fresh stainless steel surface have been studied.
研究了不锈钢去膜表面在氯化镁介质中的点腐蚀现象。
On the ceiling, the stainless steel panels broken out have dark stain marks.
天花板上被起出的不锈钢嵌板有黑色污点。
Valve shall have a brass body and stainless steel stem and spring.
这种阀门应该是黄铜阀体，不锈钢阀杆和弹簧。
Cover with hinge-device-have stainless steel hinge between the cover and the body for easy maintenance.
盖板带合页装置—盖板和壳体配有不锈钢合页，可以方便检修。
Cover with hinge-device-have stainless steel hinge between the cover and the body for easy maintenance.
盖板带合页装置—盖板和壳体配有不锈钢合页，可以方便检修。
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