the silica gel for food is an inorganic polymer colloid obtained by polycondensation of silicic acid. the main component is sio2·nh2o. its content is above 98%, it is non-toxic and tasteless, and its
2019-08-15
1. off mold pressure: in principle, it should be greater than the total pressure of the plastic injection mold, based on no flash.2. pressure and speed have some of the same contact effects in the mol
2019-08-15
the first category is storage utensils, which are divided into two parts: food storage and storage of utensils. food storage is divided into refrigerated and non-cold storage, which is completed by r
2019-08-15
first, the guidelines for hygiene: when selecting the accessories for the purchase of kitchen utensils, it is necessary to select the kitchen utensils that can be cleaned and sanitized. it must be e
2019-08-15