DIN 51222 E:2015 文件草案 材料試驗(yàn)機(jī) 沖擊試驗(yàn) 對(duì)具有標(biāo)稱能量能力的擺錘沖擊試驗(yàn)機(jī)的特殊要求 50 J 并驗(yàn)證
Draft Document - Materials testing machines - Impact test - Particular requirements on pendulum impact testing machines with a capacity of nominal energy <kleiner => 50 J and verification