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JGJ81-2002 Construction Steel Structure Welding Technical Regulations (Part 11)
Welding technology regulations for architectural steel structures (No.11)
Welding technology regulations for architectural steel structures are established in order to ensure the safety and reliability of steel structure products and their welding performance, and to guarantee their long-term saf......
1111 
Hannah
JGJ81-2002 Construction steel structure welding technical specification (fourth)
National Technical Specifications for Steel Building Co welding of JGJ81-2002
In 2002, the National Technical Specifications for Steel Building Co welding (JGJ81-2002) was introduced for the construction industry. This document embodies a set of rules and norms that are intended to standardize an......
Steel bars for prestressed concrete (YB/T111-1997)
Abstract
This article introduces the technology of steel bars in pre-stressed concrete. It consists in three parts. The first part introduces the characteristics of steel bars in pre-stressed concrete, namely, the tensile strength, elastic modulus and so on. The second part gives the structure of......
Technical specification for testing concrete strength by core drilling method
The full penetration diamond core method is a viable and cost-effective process for accurately assessing the compressive strength of concrete, minimizing the risk of obtaining false or misleading test results. This method provides a reliable measure of the concretes strength, since it wets the e......
0Cr19Ni9N use
There are many types of stainless steel in the market. Taking 0Cr19Ni9N in GB/T4237 as an example, this type of stainless steel is used in many fields in the market, first of all, it is used in electronic appliances. Its high-quality electrical conductivity (especially medium The electrical constant......
11SPb20 use
Smooth Sailing on the High Seas
On a bright summers day, a young couple is happily sailing in the open ocean. The waves are gentle, the clouds are fluffy, and the sun is shining. On the horizon is a beautiful distant island that they have been eagerly anticipating arriving at. This is their first......
31CrV3 use
The Use of 31CrV3
31CrV3 is an alloy steel with an outstanding combination of properties such as strength, machinability, and ductility. The alloy is often used in the production of springs, shafts, pins, bolts, and other fasteners. It is also used in the manufacture of gear teeth and axles as we......
35S20 use
15N35S20 is an annealed, high-strength, low-alloy steel that is optimal for applications that require high strength, light weight, and superior strength-to-weight ratio. By being able to adjust the amount of carbon used to make the steel, 15N35S20 can be tailored to meet any specific applications ......
40 uses
，要求关联到课程、学习
To effectively utilize their precious leisure time and to pursue a higher education degree, many students choose to take online classes on the internet. Consequently, students and professionals now have more access to additional classes and knowledge than ever before. For som......
60WCrV7 use
The Purpose of Having a Passion
Passion is a strong feeling of intense excitement and enthusiasm, and it is something that everyone should have and strive for in their lives. Whether its for a hobby or a career, having a passion can help to lead a positive, productive and successful life.
First......
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