| SCHOTT DURAN filtration apperatus complete with PTFE insert and clamp, filter flask (2000ml, NS 45/40), funnel (500ml, with scale) |
无参数
| SCHOTT DURAN filtration apperatus complete with PTFE insert and clamp, filter flask (2000ml, NS 45/40), funnel (500ml, with scale) |
无参数
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