螺母M12,

316l不锈钢螺母六角螺帽螺丝帽m3m4m5m6m8m10m12m14m36螺母
螺母不锈钢din6334加长加厚连接螺帽m5m6m8m10m12螺母
10级细牙薄螺母细扣细丝6173扁螺母m10m12m14m16mm20m24m30m36m64
细牙六角开槽螺母槽型螺母带槽螺帽螺母m10m12m14m16m18m20m22m24
厂家直销优质四方螺母,方形螺母四方螺帽 规格齐全m3~m12