Home / Standards / GBT 9074.32-2017 GBT 9074.32-2017 Combinations of bolts or screws and conical spring washers 螺栓或螺钉和锥形弹性垫圈组合件 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A