RICHCO
间隔柱, 尼龙6.6 (聚酰胺6.6), 圆形母, M3, 15 mm, RTSN Series
间隔柱, 尼龙6.6 (聚酰胺6.6), 圆形母, M3, 12 mm, RTSN Series
自固定间隔柱