松式橡膠圈 Loose Rubber Rings
松式橡膠圈,由丁腈橡膠或聚氨酯制成,可以做成不同的顏色,一個或兩個硬度區(qū)間(雙色松式膠圈)。
肖氏硬度可在 60-90 范圍內(nèi)選擇。
Loose rubber rings, made of nitrile rubber or polyurethane, can be made into different colors, one or two hardness intervals (two-color loose rubber rings).
Shore hardness can be selected in the range of 60-90.