10ul 20ul 200ul 1000ul одноразовый фильтр пипетки наконечники для лабораторного использования пипетка наконечник

Hangzhou Weirui Biotechnology Co., Ltd. is a comprehensive reagent company committed to the R & D and sales of biochemical reagents and consumables in the field of life science products. We are committed to providing reliable quality and low-cost laboratory supplies for scientific research and clinical workers all over the world. It has helped dozens of research institutes build experimental platforms and won unanimous praise.