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北京博研科創(chuàng)生物技術(shù)有限公司旗下國家標(biāo)準(zhǔn)物質(zhì)樣品信息網(wǎng)www.gbw600.cn。主要銷售國產(chǎn)標(biāo)準(zhǔn)物質(zhì)、進(jìn)口標(biāo)準(zhǔn)品、藥典標(biāo)準(zhǔn)品以及各類穩(wěn)定同位素等標(biāo)準(zhǔn)品。代理美國NIST標(biāo)準(zhǔn)品。SRM 888 Cemented Carbide （W-64,Co-25,Ta-5）硬質(zhì)合金（W-64,Co-25,Ta-5） 100g

SRM 871 Bronze, Phosphor (CDA 521) 青銅、磷(CDA 521) 100g
SRM 872 Bronze, Phosphor (CDA 544) 青銅、磷(CDA 521) 100g
SRM 874 Cupro-Nickel, 10% (CDA 706) 銅鎳合金, 10% (CDA 706) 100g
SRM 875 Cupro-Nickel, 10% (CDA 706) 銅鎳合金, 10% (CDA 706) 100g
SRM 879 Nickel Silver, (CDA 762) 鎳黃銅, (CDA 762) 100g
SRM 880 Nickel Silver, (CDA 770) 鎳黃銅, (CDA 770) 100g
SRM 882 Alloy Ni-Cu-Al 100g
SRM 885 Refined Copper 精煉銅 200g
SRM 886 Gold, Ore Refractory 金礦，礦石耐火材料 200g
SRM 887 Cemented Carbide (W-83,Co-10) 硬質(zhì)合金(W-83,Co-10) 100g
SRM 888 Cemented Carbide (W-64,Co-25,Ta-5) 硬質(zhì)合金(W-64,Co-25,Ta-5) 100g
SRM 889 Cemented Carbide (W-75,Co-9,Ta-5,Ti-4) 硬質(zhì)合金 (W-75,Co-9,Ta-5,Ti-4) 100g
SRM 890 Cast Iron, HC250+V 150g
SRM 891 Cast Iron, Ni-Hard, Type I 150g
SRM 892 Cast Iron, Ni-Hard, Type IV 150g
SRM 893 Stainless Steel (SAE 405) 不銹鋼(SAE 405) 150g
SRM 895 Stainless Steel (SAE 201) 不銹鋼(SAE 201) 150g

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