食品安全/营养与健康
仙豆
第1楼2009/09/19
PP ,PE,OP 材料都要进行这两个测试
两个字的烦恼
第2楼2009/09/21
原文中Olefin copolymers described in paragraph (a)(3)(i) of this section and polyethylene. Olefin copolymers described in paragraph (a)(3)(ii) of this section, polypropylene, and poly(methylpentene).(a)(3)(i)和(a)(3)(ii)中说的材质一样吗?
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