Abstract Two softer materials can synthesize a substance that is harder than diamonds. Who be ...
Name: Improvement of sealing ring and vane bushing for mine wear-resistant multistage pump ...
The relevant media has conducted a comprehensive analysis of China's commercial concrete ...
Model NO.: TWH
...
In order to achieve no gap between the radial or axial direction of the main body of the qui ...
Fifteen methods for preparing crop foliar fertilizer I. Urea solution: The commonly used concen ...
Zinc is one of the essential nutrients for plants, and corn is a zinc-sensitive crop. White zin ...
With the rapid development of science and technology, there are more and more varieties of foli ...
Modern automotive gearboxes are designed to reduce weight and versatility. More and more die-cast ...
First, do not use sewage to dispense drugs: there are many impurities in the sewage, it is easy ...
Model NO.: 0.8mm
...
Bacterial pesticides are biological pesticides with high insecticidal rate, no pollution to the ...