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品牌: sigma 货号: C-5890 酪蛋白[Casein] Sigma C-5890 250g From Bovine Milk Technical Grade Suitable for Substrate for Pro
品牌: sigma 货号: C-5890 酪蛋白[Casein] Sigma C-5890 250g From Bovine Milk Technical Grade Suitable for Substrate for Pro