现在我厂主要生产紧固件产品中的螺母、平垫圈类系列的产品。

Now my main production plant in fasteners products nut, plain washer series products.

youdao

现在我厂主要生产紧固件产品中的螺母、平垫圈类系列的产品。

Now my main production plant in fasteners products nut, plain washer series products.

youdao