HPEG is most commonly used for the production superplasticizer products of polycarboxylic Acid. HPEG2400 1. Scope of HPEG2400 1. HPEG is most commonly used for the manufacturing of polycarboxylic Acid superplasticizer products. 1. Mix the oil direc…
Concrete is classified as high-strength concrete based on 28-day strength. Until the 1970s, concrete with a strength of more than 40Mpa was classified as high-strength concrete.…
On July 13, the US Food and Drug Administration (FDA) approved novavax's COVID-19 vaccine for emergency use in people 18 and older, making it the fourth vaccine to receive emergency authorization for use in the US. At the same time, the recent transm…
The World Bank expects global economic growth to slow significantly, from 5.5% in 2021 to 4.1% in 2022 and further to 3.2% in 2023. Growth in East Asia and the Pacific is expected to slow to 5.1 percent in 2022, reflecting the impact of China's econo…