m16螺母规格,m16螺栓规格

m2m3m4m5m6m8m10m12m14m16m18m27-m30六角螺母平垫片弹垫圈高强度螺丝
耐高温peek外六角螺丝m3m4m5m6m8m10m12m16 防腐蚀peek螺钉高强度螺栓
定制10级gb6172六角薄螺母扁螺母螺帽m8m10m12m14m16m18m20m22m24m3
而且锌层厚薄不均匀,影响了螺纹件的配生产销售m20镀彩法兰螺母,m16
304不锈钢法兰螺母m3m4m5m6m8m10m12m16m20六角防滑防