模锻圆环材质为20MN 和合金钢，表面喷红塑和电镀，也有其他颜色因其内部光滑，活动范围广，在吊拉索具使用较多，连接双环扣，及绳索比较方便。2 INCH WLL IS 20TON. ROUND RINGS USUALLLY IS MADE OF 20MN AND ALLOY STEEL, THE SURFACE BE PAINED RED AND OTHER COLORS,CONECTED WITH A337 ,AND WIRE ROPES.
模锻圆环材质为20MN 和合金钢，表面喷红塑和电镀，也有其他颜色引起内部光滑，在吊拉索具使用较多，连接双环扣，及绳索比较方便。2 INCH WLL IS 20TON. ROUND RINGS USUALLLY IS MADE OF 20MN AND ALLOY STEEL, THE SURFACE BE PAINED RED AND OTHER COLORS,CONECTED WITH A337 ,AND WIRE ROPES.
