fasteners-countersinks for countersunk head serews的意思|示意
美 / /
英 / /
紧固件。沉头螺纹用沉头
fasteners-countersinks for countersunk head serews的网络常见释义
沉头用沉孔 ... 沉头铆螺母 countersunk head riveted nuts 沉头用沉孔 fasteners-countersinks for countersunk head serews 凸肩沉头 undercut flat head ...