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Installation of Roll Changing Device in Rolling Mill
Erection and installation procedure of changing roller device for rolling mill
1. Background
In recent years, with the rapid development of Chinas economy, the number of rolling mills has increased geometrically. Rolling mills are usually equipped with changing roller devices so that their worki......
1041 
Sophia
"Kao Gong Ji"
Examination for Civil Service
The Examination for Civil Service (called as the Ke Gong Ji in Chinese) is a system of competitive attention and essential academic knowledge to government bureaucracy. Imperial officials in China are usually selected through a range of examinations and tests that ha......
CJ/T 3070-1999 Urban Water Classification Standard
Classification Standard of Urban Water Use
Introduction
Urban water usage is an important factor in the daily activities and operations of a city. It is important to ensure that water resources are managed in an efficient and effective manner to avoid significant losses in terms of unexpected wa......
GB/T 15263-94 Determination of Total Hydrocarbons in Ambient Air by Gas Chromatography
GB/T 15263-94 Determination of total hydrocarbon in ambient air by gas chromatography
The determination of total hydrocarbons in ambient air is a measure of the particulate matter that bares the potential to be harmful to health. In order to determine the hypothesis and verify quantitative levels......
GB 12997-91 Water Quality Sampling Program Design Technical Regulations
Design Specifications of Sampling Scheme for GB 12997-91 Water Quality
Background
The Water Quality Standard (GB 12997-1991) was formulated by the Ministry of Environmental Protection of the Peoples Republic of China. This standard is applicable to water bodies such as rivers, lakes, reservoirs,......
GB 13271-2001 Boiler Air Pollutant Emission Standard
GB 13271-2001 Emissions Standards for Atmospheric Pollutants from Boilers
The Regulations on Emissions Standards for Atmospheric Pollutants from Boilers, developed under the auspices of the Peoples Republic of China Environmental Protection Agency, were officially implemented on December 31, 2001......
ISO5388-1981 fixed air compressor safety rules and operating procedures
来说明？
Introduction
ISO 5388-1981 Fixed Air Compressors Safety Rules and Operating Procedures is the international standard that provides safety rules and operating procedures for the installation and operation of fixed air compressors. Air compressors are widely used in many industrial, commerc......
Debugging of high voltage asynchronous motor
commissioning of high voltage asynchronous motors
Commissioning of high voltage asynchronous motors is part of the industrial process to ensure that the motors are running correctly and efficiently. The process involves a variety of testing procedures and checks to ensure that the motor is up to......
Solenoid valve standard summary
Solenoid Valve Standardization
Solenoid valves are becoming increasingly popular in the industry as they provide a reliable and user-friendly way to control the flow of fluids, gases and other substances in many different types of setting. As the usage of these valves increases, so does the need ......
Composite food packaging bag hygienic standard GB 9683-88
，描述Compound food packaging bags hygiene standard GB 9683-88
Compound food packaging bags hygiene standard GB 9683-88
Compound food packaging bags are bags used for the packaging of food. As there is concern about the safety of food due to contamination, this particular standard seeks to regulat......
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