Home / Standards / GB/T 922-1986 GB/T 922-1986 Active Specifications for wood screws 木螺钉技术条件 Standard Type GBT ICS 21.060.10 CCS J13 Status 现行 Issue Date 1986-07-02 Implementation 1987-06-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A