实验室耗材， 实验室用一次性加液器(无针头), 仅限科研使用，三件式, 带胶塞, 带鲁尔锁, pp, 20 ml, 100支/盒

Laboratory consumables, disposable dispenser for laboratory use (without needle), limited to scientific research use only, 3-piece, pp, luer lock tip, 20 ml, 100 pcs