Purchase Qty. Reference FOB Price
12-203 Pieces US$18.00
204-500 Pieces US$16.00
501+ Pieces US$12.00
Product Description
Product Description Pumping disc Product Introduction The pumping disc is composed of an air extractor, a bell cover, an electric bell and a rubber seal ring. It must be used in conjunction with an air extractor or a dual-use air cylinder during the experiment. Product Specification Product ...