Shandong Guangtongbao Pharmaceutical Co., Ltd

Also known as Black Diamond, with a molecular formula of B4C, it is usually a gray black micro powder. It is one of the three hardest materials known (the other two being diamond and cubic boron nitride), used in tank armor, bulletproof vests, and ma

For the thousands of highly inefficient chemical plants in operation producing nearly one trillion USD in basic chemicals annually, QSI develops and manufactures seamlessly integrated nanocatalyst technologies which have the potential to improve pr