工艺采用冷锻、热打、切削，GY为本厂产品的注册商标。

We use cold-forming, hot-striking and cutting to produce the products. The products registering trade mark is GY.

youdao

工艺采用冷锻、热打、切削，GY为本厂产品的注册商标。

We use cold-forming, hot-striking and cutting to produce the products. The products registering trade mark is GY.

youdao