brazzers欧美精品,亚洲视频在线观看网站,国产色在线观看,亚洲国产综合91精品麻豆

Dry Constant Temperature Ice Box DHP-100 is a temperature controlled metal bath instrument with microcomputer control and semiconductor refrigeration technology. It has high temperature control accuracy and can be widely used for short-term storage of low-temperature experimental reagents or experimental samples during experimental operations. This instrument can replace laboratory ice machines, ice boxes, and ice bags, reducing pollution and keeping it clean and hygienic. It is a common laboratory instrument in molecular biology laboratories.