ICS25.120.30ccsJ61GB中华人民共和国国家标准2023-09-07发布冷室压铸机ColdchamberdiecastingmachinesCB/T21269-2023代替GB/T21269一201820...
GB/T 21269-2023 冷室压铸机.pdf
GBT 21269-2023 冷室压铸机.pdf