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Chromium polynicotinate:
Properties: smoky gray fine powder, stable at room temperature, insoluble in water, insoluble in ethanol, in which chromium is trivalent chromium chromium nicotinate
use:
Feed additives, medicines and health products, food additives.


Chromium Picolinate:
Properties: This purple-red crystalline fine powder has good fluidity and is stable at room temperature. It is slightly soluble in water but insoluble in ethanol. The chromium ...

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How to choose smart toys for babies? The correct purchase of smart toys directly affects children's physical and mental health. A good baby toy must be safe, fun and educational. Safety is the first, and safety is the first factor to consider when buying toys for your baby. Whether domestic toys comply with China’s GB6675 "Toy Safety", if they are imported toys, you must see whether they comply with the European Community toy standard EN71, whether the name of the manufacturer, site, trademark, ...

الكلمات الدلالية (Tags): plush toy

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Domestic and foreign companies have used a variety of cleaning methods in core box cleaning:
a. Use chemical cleaning agents to clean.
b. Use dry ball jet method to clean the core plate.
c. Use liquid or solid sandblasting machine for sandblasting and cleaning.


Use a liquid sandblasting machine, precision casting，the compressed air pressure is 0.5 ~ 0.7MPa, and the spraying distance is about 10 ~ 120mm. The cleaning medium chooses 90um glass pellets or ...

الكلمات الدلالية (Tags): precision casting

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The difference between CNC milling machine and machining center:
The machining center is a numerically controlled machine tool with an automatic exchange device and capable of continuously processing a variety of processes. It is developed from CNC milling machine.


The biggest difference from the CNC milling machine is that the machining center has the ability to automatically exchange machining tools. By installing tools for different purposes on the tool magazine, the ...

الكلمات الدلالية (Tags): cnc

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CNC machining refers to a process method for processing parts on a CNC machine tool. The process regulations of CNC machine tool processing and traditional machine tool processing are generally consistent, but significant changes have also taken place. A machining method that uses digital information to control the displacement of parts and tools. It is an effective way to solve the problems of variable parts, small batches, complex shapes, and high precision, and to achieve high-efficiency and ...

الكلمات الدلالية (Tags): cnc

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