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Existentialism
Existentialism is a philosophical movement that began in the mid-19th century and became popular in the late 20th century. The term “existentialism” was coined by the French philosopher Jean-Paul Sartre in the 1940s, but the movement had already been taking shape for some time be......
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Medical suture needle steel wire (YB/T5219-1993)
产品介绍
Medical suture needles are made of steel wire according to the standard of YB/T5219-1993 and are used for surgical operations. They are commonly used for stitching human wound incisions and suturing.
The size ranges from 0.8mm to 2.2mm in diameter and from 2mm to 8mm in length. The ste......
Constant elastic alloy 3J53Y wire for watch hairspring (YB/T5262-1993)
INTRODUCTION
Precision springs are an essential element in watchmaking and clockmaking, where accuracy is essential. One such type of spring used in mechanical watches and clocks is the 3J53Y balance spring, also known as mainspring, balance wheel or hairspring. Balance springs are used to contro......
Hot-rolled U-shaped steel for mine roadway support (GB/T4697-1991)
Hot Rolling U-shape Steel for Mine Tunnel Support
U-shaped steel is an important material used in mine tunnel support. It provides structural support and stability so that the tunnel is secure, and miners can safely access the staircase leading to the mine safely. Hot rolling U-shape steel for mi......
Niobium seamless pipe GB 8183-87
GB 8183-87 Seamless Nichrome Tubes
This standard (GB 8183-87) sets out the requirements for seamless nichrome tubes, which are made from nickel, chromium and iron alloys. The standard applies to tubes for general use with a maximum wall thickness of 6 mm and an outer diameter of up to and includi......
YB/T 897-1985 Round steel for electric welding anchor chain
YB/T 897-1985 Steel Round for Weld Stud Anchor Chain
The YB/T 897-1985 is a Chinese standard for steel round used for weld stud anchor chain. As an important product, steel round plays a key role in the design and manufacture of many aerospace parts, industrial machinery, and other products.
Com......
Metal pipe necking test method GB 243-82
Investigation method of shrinkage of metal pipes
Metal pipe shrinkage is a commonly used technique in many pipeline materials. It is based on the process of using the thermal energy generated by the heating element to a certain temperature, coupled with the closing elements extrusion lock, so tha......
Continuous cast iron pipe (GB/T3422-1982)
Continuous Cast Iron Pipe
Continuous cast iron pipe is made from iron and carbon alloy that has been melted in a furnace and poured into a mold to form a continuous pipe. This type of pipe is used for oil and gas conveyance and water supply systems as well as for culverts and sewers. Continuous c......
Steel plate with low welding crack sensitivity for Anshan Iron and Steel pressure vessel
Abstract
Crack sensitivity of low welding crack cracking steel plates for pressurized vessels used in Anshan is a process improvement project. The research includes the characteristics of common steel plates, the preparatory work before operation and the welding process of low welding crack crack......
Research on High Purity Non-quenched and Tempered Steel for Automobiles
Research on Vehicle Grade Non-Tempered Steel with High Purity
Abstract
In recent years, there has been an increasing demand for automobiles with higher performance and lighter weight, prompting more attention to steel alloys with excellent mechanical properties. Vehicle grade non-tempered steel,......
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