标 准 编 号：BS 919-2-2007简体中文标题：螺纹量规极限和公差规范.第2部分:惠氏螺纹量规和BA螺纹量规 繁体中文标题：螺纹量规极限和公差规范.第2部分:惠氏螺纹量规和BA螺纹量规 English Name：Specification for screw gauge limits and tolerances - Gauges for screw threads of Whitworth and BA forms...