UN 拥有比CM更高的硬度，适用于倒角、去毛刺、去除硬质材料的锋利毛边。UN 并具备磨料头部不易变形的特性，它能有效维持工件的形状。对于去除细毛边或维持加工精度部分效果尤佳。
研磨料
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ABR-UN-04133-WA(粒度)
结合剂: UN77TV
ABR-UN-05153-WA(粒度)
结合剂: UN77TV
ABR-UN-06173-WA(粒度)
结合剂: UN77TV
ABR-UN-08203-WA(粒度)
结合剂: UN77TV
ABR-UN-10203-WA(粒度)
结合剂: UN77TV
ABR-UN-13203-WA(粒度)
结合剂: UN77TV
ABR-UN-15203-WA(粒度)
结合剂: UN77TV
ABR-UN-15256-WA(粒度)
结合剂: UN77TV
ABR-UN-20256-WA(粒度)
结合剂: UN77TV
ABR-UN-25256-WA(粒度)
结合剂: UN77TV
