Patented preparation of diblock graft copolymers

Poly-L-glutamic acid-poly-N-isopropylacrylamide graft copolymers and methods of preparation invented by the researcher of Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, etc., have recently obtained national invention patents. The invention uses hydrogen bromide or catalytic

Vertical double pump installation

KQM pumps are specifically designed to install pumps directly on the pipe. The weight and center of gravity of the pump allows all types of pumps to be installed directly in the pipeline as long as the pump is installed under all conditions without stress. In addition, it is also possible to use fo

Volvo Trucks Debuts Gas-to-Diesel Diesel Fuel Engine

Volvo Trucks World's First to Meet Euro 5 Standards for Natural Gas Diesel Engines As a truck manufacturer, Volvo Trucks will first launch a diesel engine jointly driven by natural gas and diesel fuel in the world. This engine can fully meet the Euro 5 emission standards promulgated in 2009.