20742ES Spin Desalting Column, 3 mL 离心脱盐柱, Spin Desalting Column, 3 mL 离心脱盐柱, 3 mL 5个 Specs 2 sizes Yeasen ¥885.00 Inquire询 Detail详 20742ES08 5个 ¥885.00 20742ES20 4× 5个 ¥3,185.00