兑水 发表于 2009-10-3 17:33:29

ASTM D 2868-1996 皮革的氮含量(Kjeldahl法)和生皮料含量的试...

D2868-96(2001) Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather
页: [1]
查看完整版本: ASTM D 2868-1996 皮革的氮含量(Kjeldahl法)和生皮料含量的试...