Shenyang Eco-Park to achieve zero emissions exhaust heat pump
May 25, from Shenyang Metallurgical Industry Park, the news, a total investment of 5 billion yuan, c ...
Cat : 202209
Security Questions and Answers
Posted on
1. How far is the wireless receiving distance of the detector? Barrier-free distance is 300 meters ...
Honeybee colony is a genetic family gene
Posted on
According to a May 30 issue of the journal Science, many bees, ants and wasps live together in a ...
Yichun First Machinery Factory develops Feilong new drill bit
Posted on
The Jiangxi Provincial Department of Science and Technology issued a notice that the Feilong 81/2 ...
June 12 Hangzhou Steel Market Price Quotes
Posted on
Name of product specification Materials Steel factory / origin Price (yuan/ton) Than yesterda ...
June 15th Beijing Pipe Market Price Quotes
Posted on
Name of product specification Materials Steel factory / origin Today's price (yuan/ton) Y ...
Comparison of screw pump and gear pump advantages and disadvantages
Posted on
First, the advantages of gear pump Reliable structure, stable work, low cost, non-corrosive oil can ...
British researchers identify "obesity genes"
Posted on
British researchers investigated the existence of 5,000 pairs of twins, and there are indeed &quo ...
Vear CAD based on engineering applications
Posted on
〠Abstract 】 The main characteristics and application characteristics of the roll forg ...
Introduction to the method of numerical control repair and transformation (5)
Posted on
4 NC maintenance and improvement of relations <br> <br> domestic transformation in CNC ...
Application of CAD in machining center and flexible design
Posted on
Abstract: Combining several application examples, the importance, necessity, superiority and develo ...
A new method for finding a linear size
Posted on
In mechanical parts, many linear dimensions are related to the angle, such as the width dimension o ...