“worn parts”簡單造句，worn parts造句子

I bought a secondhand sewing machine and then had to pay out lots of money to replace many worn parts.

It is used for surfacing welding of various worn parts such as crusher, high manganese rail and so on.

The consortium does not have to bear the costs of worn parts and repairs.

Convenient operation and maintenance, and less easy worn parts, maintenance costs is lower than general hoist.