Home / Standards / GB/T 4550-1984 GB/T 4550-1984 Abolished Preparation of unidirectional orientated fiber reinforced plastic plates for test purposes 试验用单向纤维增强塑料平板的制备 Standard Type GBT ICS 83.140 CCS Q23 Status 废止 Issue Date 1984-07-07 Implementation 1985-06-01 Responsible Dept N/A Drafting Unit N/A