-
高速套结机针棒套筒为合金钢材质，经特殊处理。
Needle rod metal has changed for the steel alloy, gotten unique finish.
youdao
-
螺杆采用合金钢材料经特殊工艺制成，使用寿命长；
Screw is made of alloy steel with long life.
youdao
-
螺杆采用合金钢材料经特殊工艺制成，使用寿命长；
Screw is made of alloy steel with long life.
youdao