标 准 编 号：DIN 837-2007 简体中文标题：带次级用双头的梅花扳手.尺寸和检验扭矩 繁体中文标题：带次级用双头的梅花扳手.尺寸和检验扭矩 English Name：Box wrenches, double head for subordinate applications - Dimensions and test torques ...