The left supporting roller and the right supporting roller have free adjustment function from 35 degrees to 60 degrees, and can effectively reduce the sag resistance.
本 发明的左、右两个托辊具备从35度至60度的自由调整功能，可有效降低压陷阻力。
The left supporting roller and the right supporting roller have free adjustment function from 35 degrees to 60 degrees, and can effectively reduce the sag resistance.
本 发明的左、右两个托辊具备从35度至60度的自由调整功能，可有效降低压陷阻力。
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