GB/T 1414-2003
AbolishedGeneral purpose metric screw threads--The plan for pipe systems
普通螺纹 管路系列
📚 References & Relations / 引用与关联
normative_reference
GB/T 14791
normative_reference
GB/T 193-2003
normative_reference
GB/T 197-2003
normative_reference
ISO 261
normative_reference
ISO 5408
normative_reference
ISO 965-1