Hello world!
What types of plastic plasticizers are there?
Any substance added to plastics that increases the plasticity of the plastic can be called a plastic plasticizer . Plasticizer refers to a kind of auxiliary agent which can increase the plasticity and easy processing property of high molecular polymer and impart flexibility and impact strength to th ....
Hello world!
Goal-oriented internal control index research
Since the US enacted the SOX Act in 2002, internal control practices and theoretical research have made great strides. Based on the experience of foreign countries, the Ministry of Finance and other five ministries have issued the basic norms of internal control of enterprises (hereinafter referred ....
Hello world!
Buying furniture, "looking" and "trying&…
Hard money bought a house, installed a repair, and sent the furniture! There are many kinds of furniture. Buying furniture is a big problem for many people. Here, Xiaobian wants to tell everyone: It is very important to buy furniture, "see" and "try"! See ....
Hello world!
Application and research of elastic bolts
In the aero engine design process, due to the structure, use and maintenance, etc., a considerable number of components and components need to be connected to each other. Therefore, a fastener for joining two or more zeros and components into one unit is an essential component in engine design. Due ....
Hello world!
China, Japan and South Korea's shipbuilding industr…
Abstract At present, the world's major shipyards face enormous risk challenges. In the harsh market environment, the days of China, Japan and South Korea's shipbuilding countries are not good. South Korea’s three major shipping companies suffered huge losses, and Chinese shippi ....