The U.S. and its allies plan to impose sanctions on more Russian industries and supply chains.The US government representatives recently visited Europe to consult with allies on strengthening and enforcing sanctions to punish Russia. They also plan t…
Boron carbide, alias black diamond, has a molecular formula of B4C, usually grayish black powder.…
2021 could be the calm before the storm. Aside from a few new Apple Silicon Macs, 2021 was a quiet year for Apple. The new iPhone has improved camera and battery life but is otherwise nearly identical to the 2020 model. Aside from a slight c…
Concrete superplasticizer is high efficienct water reducing agent. Its difference from ordinary water reducing agent lies in the high-water reduction rate. The water reduction rate of ordinary water reducing agent is generally 5%-10%, and the water r…
0086-0379-64280201
brad@ihpa.net
skype
whatsapp