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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
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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
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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
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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
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silicone accessories, in some years, due to environmental protection and other needs to slowly replace some of the silica gel raw materials, sometimes a
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1, preemptive effectin a specific environment, because a particular skill or brand preempts other companies in the same profession, it will certainly drive the entire enterprise. for example, hardwar
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stainless steel is a steel that is not easy to rust. it is made of iron-chromium alloy and other trace elements. because of its excellent metal function and corrosion resistance compared to other meta
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plastic products are widely used, and huge downstream occupations provide strong support for the development of plastic products in china. following the promulgation of the “revitalization of petroche
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there are several problems in the hardware industry: the variety of products in the hardware industry is complex, and there are many standard types of the same kind of products, which are not easy t
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said to be a wok, in fact, it was not used as a wok. at that time, i just worked and lived in the unit's single dormitory. according to the rules, the canteen should be eaten. the dormitory does n