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GBT_14506.30-2010_硅酸盐岩石化学分析方法_第30部分:44个元素量测定
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三体系证书
NetTHE INTERNATIONAL CERTIFICATION NETWORKCERTIFICATECOC has issued an IONet recognized certificate that the organization:Yunnan Tin Company Limited [ncluding YunnanTinTin Products...
DIN975-1970
DIN 975.Lnnn bkM pe3b60BbleUDC621.882.219.4-422.11DEUTSCHE NORMENJanuary 1970丽Tbreaded Rods975GewindestangenDimensions in mm1000:0Designation of a threaded rod with thread d.M 10:...