Office supplies procurement method sharing

The purchase of office supplies is a cumbersome thing for many people. With so many brands, so many types of goods, walking into the store alone, dizziness is the most normal thing, as a company's purchase. Personnel, how can we make quick and cost-saving purchases of office supplies

Five common problems of cryostat

Shanghai Bilang analyzes five common problems of cryostat.

1. Is there any special requirements for the temperature and heating voltage of the water in the thermostat? Why?


The temperature of the water in the tank should not be too large from the room temper