304不锈钢方斜垫片缺角平垫圈槽钢用方斜垫圈镀锌四方垫gb853国标

gb853不锈钢304/316l槽用方斜垫圈发黑镀锌四方斜垫m6m8m10m12m30

304不锈钢方斜垫片m6m8m10m12m14m16m18m20m22m24m27m30垫圈gb853

弹簧垫圈图规格尺寸表

304/316不锈钢gb853槽钢用方斜垫圈方斜四方缺角垫片m6m8m10 -m24