BD培养基 262710 500 g EA Difco Middlebrook 7H10 Agar Middlebrook 7H10琼脂 
Nalgene官网乐基因官网
Nalgene中国代理商Thermo Fisher赛默飞代理商
BD培养基 262710 500 g EA Difco Middlebrook 7H10 Agar Middlebrook 7H10琼脂