Are steel plates cleaned for each cycle and polished periodically? Is the thickness of the steel plate checked regularly?
每批钢板是否定期清洁并打磨？钢板的厚度是否定期检查其厚度？
2
I read her name on the polished brass plate.
我在擦亮的黄铜门牌上看到了她的名字。
3
Handrail frame and Station foot: high quality steel plate, steel stamping and welding molding and polished, rust phosphating, electrostatic powder coating, high temperature baking and other process.