In laboratories and scientific research institutes, liquid nitrogen is usually used as a refrigeration medium to freeze and preserve cell samples. However, liquid nitrogen is a consumable liquid. It volatilizes when exposed to heat. Even if it is stored in a low-temperature container, it will contin…
Stem cells are cells with the ability to self-replicate and differentiate into multiple directions. Under certain conditions, they can differentiate into cells with multiple functions and have the ability to repair various tissue functions and regenerate organs. Therefore, they are also called "…
Umbilical cord blood is the blood that remains in the placenta and umbilical cord after the fetus is delivered and the umbilical cord is ligated and severed. It contains stem cells that can rebuild the human hematopoietic and immune systems. It can be used for hematopoietic stem cell transplantation…
Liquid nitrogen tanks, according to the classification of liquid nitrogen status, can be divided into liquid-phase liquid nitrogen tanks and gas-phase liquid nitrogen tanks;Biological samples in liquid-phase liquid nitrogen tanks are stored under the surface of liquid nitrogen, and the samples are i…
South africa Cr-sandPHYSICAL AND CHEMICAL INDEXItemUnitIndexCr2O3%≥46.0%SiO2%≤1.0%FeO%≤26.5%CaO%≤0.30%MgO%≤10.0%Al2O3%≤15.5%P%≤0.003%S%≤0.003%Cr/Fe 1.55:1Bulk Densityg/cm³2.5-3Color/BlackPH/7-9The amount of the acid/≤ 2 MLPercent soil%≤0.1Percent Moisture
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1)Cover size :145*210MM,customized size/color is available2)Cover material:PU leather bond with 1.5 grey board3)Paper :Huajing ivory paper,100GSM x 80sheets, GSM/sheets can be customized4)Inner page imprint: Lined/Squared/Week Calendar/Diary etc.CMYK imprint5)Binding: sewn binding Zhejiang…
1)Cover size :145*210MM,customized size/color is available2)Cover material:Art paper with custom design printing3)Paper :Huajing ivory paper,100GSM x 80sheets, GSM/sheets can be customized4)Inner page imprint: Lined/Squared/Week Calendar/Diary etc.CMYK imprint5)Binding: sewn binding Zhejia…
1)Cover size :145*210MM,customized size/color is available2)Cover material:Art paper with custom design printing3)Paper :Huajing ivory paper,100GSM x 80sheets, GSM/sheets can be customized4)Inner page imprint: Lined/Squared/Week Calendar/Diary etc.CMYK imprint5)Binding: sewn bindingAffiliation:Senio…
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Currently, marble quarrie south africa has become the main equipment of sand making in artificial aggregate system and by studying the law of sand making, this paper tries to improve the technology of artificial sand processing.After several years of research and development,Changlei makes the cone …
South Africa has the deepest shaft in the world and advanced deep mining technology. The Transvaal , a region in South Africa which is rich in minerals, especially gold, was annexed by the British. Over the years, many practical technologies for underground cooling have been developed in the gold mi…
We need Africa zebrano and wenge logs and planks , 50mm thick , 300mm long up ,width can be 50 or multiple of 50mm . please make sure that one face must be A grade ,the quality of logs can be ABC grade and the diameter is above 30cm
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