GBT15856.3-2002 十字槽半沉头自钻自攻螺钉.pdf

ICS21.060.10J13GB中华人民共和国国家标准GB/T15856.3一2002eqvISO15483:1999十字槽半沉头自钻自攻螺钉Crossrecessedraisedcountersunkhead...