The striated and polished surfaces are called slicken-sides.
有条

光面则称为擦
面。
The striated and polished surfaces are called slicken-sides.
有条

光面则称为擦
面。
Outside surface is mill finish.Reinforcing layer is braid fiber with high retractility.
2 、外
为光面,增强层为高伸缩性编织纤维。
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