GB/T 3250-2017铝及铝合金铆钉用线材和棒材剪切与铆接试验方法国家标准
英文:Shearing and riveting test method of wires and rods for the aluminum and aluminum-alloy rivets GB/T 3250-2017介绍: 国家标准...
英文:Shearing and riveting test method of wires and rods for the aluminum and aluminum-alloy rivets GB/T 3250-2017介绍: 国家标准...