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Classification method of radiography and film grades of steel castings (abstract) GB 5677-85
X-ray photography and film grading of castings is a widely accepted practice used to detect any discontinuities and flaws in the casting. In recent times, this method has become a standard to evaluate the quality of castings and to determine the necessary measures needed to achieve certain quality......
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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......
Gray cast iron (GB/T9439-1988)
Gray casting iron (GB/T9439-1988)
Gray cast iron, commonly known as cast iron, is a metal alloy consisting predominantly of iron with carbon and silicon as the main alloying elements. Gray cast iron has a comparatively high strength and wear resistance, and is used in a wide variety of applicatio......
Metal drill (GB/T3211-1987)
Metal drill (GB/T3211-1987)
Metal drills are tools which can be used to drill holes through metal surfaces. As metal is a more robust material than wood, it demands more specialized tools for drilling. Metal drill (GB/T3211-1987) is a certification standard of metal drill tools in China.
Metal ......
Electrolytic manganese metal (YB/T051-1993)
Electrolytic Manganese
Introduction
Electrolytic manganese is a metal element obtained through electrolysis. It is a silvery-white, hard, and brittle metal with a specific gravity of 7.44. In its pure form, it is relatively non-reactive, but it also has a tendency to oxidize in the presence of a......
Plastic mold steel module (YB/T129-1997)
Introduction
This article will attempt to provide an overview of YB/T129-1997, a standard, or document, issued by the Chinese State General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) for plastic injection mould steel modules (PIPSMs). Specifically, the article will c......
Representation method of alloy steel grade
Alloy steel is a kind of steel made mainly by adding or changing alloy elements in ordinary carbon steel to obtain desirable mechanical properties, physical properties or special preformance. It is widely used in a variety of industrial fields such as manufacturing automotive and aerospace compone......
10F Purpose
The Social and Economic Impact of Fastest-Growing Corporations
Today, large corporations are the most dynamic and influential economic entities in the world, providing jobs, products, and services to people around the globe. In many ways, they are the engine of World Economic growth, at least in ......
22CrMoS3-5 application
1 Introduction
42CrMoS3-5 is a ferritic stainless steel that is commonly used for a range of applications due to its superior strength and corrosion resistance. It is known for its excellent durability and ability to withstand both high and low temperatures. This article will provide an overview ......
22NiMoCr4-7 use
EN1.22NiMoCr4-7 is a type of copper alloy which is a nickel-molybdenum-chromium wrought alloy that is commonly used in the United States and other countries. This alloy is heat treatable, offers good strength and high corrosion resistance. It is also typically used to produce parts and components ......
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