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GB3216-89 Test methods for centrifugal pumps, mixed flow pumps, axial flow pumps and vortex pumps
The standard for testing centrifugal pumps, mixed-flow pumps, axial-flow pumps, and turbine pumps (GB3216-89) was released in 1989 by the People’s Republic of China and applies to the testing of these types of pumps in China. This article is an overview of the requirements of the standard and how......
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GB13690-92 Classification and Marking of Commonly Used Hazardous Chemicals
Classification and Labeling of Commonly Used Dangerous Chemicals GB13690-92
Chemicals are widely used in a variety of industries and sciences, and the responsible use of such chemicals is of great importance for a number of reasons. The Chinese government is committed to helping people throughout......
GB 12268-90 List of Dangerous Goods
Goverman, with the cooperation of the Organization for Standardization in China (OSC), has developed a comprehensive list of hazardous goods for use in the transportation of goods throughout the Chinese territories. This list, GB 12268-90, is a full classification of the numerous hazardous goods t......
GB 16297-1996 Comprehensive Emission Standard of Air Pollutants
Atmospheric Pollution Comprehensive Emission Standards GB 16297 - 1996
Atmospheric pollution has long been a major public health and environmental concern. On the basis of comprehensively considering the latest scientific and technological data, the “GB 16297 - 1996 Comprehensive Emission Standa......
KOYO bearing
KOYO Bearings
Koyo bearings are bearings manufactured by JTEKT Corporation, a leading manufacturer of bearing products in Japan. This company was established in 1973 and produces high quality bearings and automotive components. Koyo bearings are available in a wide range of sizes, types, and style......
QC/T 671-2000 Compressed natural gas decompression regulator for automobiles
，谢谢
1. Introduction
Natural gas is one of the most widely used energy sources in the world. It is an important fuel for transportation because of its low emissions and higher efficiency compared to other sources. In order to use natural gas in vehicles, a compressor is needed to pressurize the......
QC/T 692-2002 Technical Specifications for Gasoline/Natural Gas Dual Fuel Engines
Introduction
The Chinese automobile industry is one of the largest and most important industries in the world today, and gasoline and natural gas two-fuel engines are an essential technology for the development of the industry. In order to ensure the steady development of this technology and to i......
Application design considerations for variable speed bearings
Design Considerations for Applications of Variable Speed Bearings
Variable speed bearings are an essential component of many types of machinery and equipment. These components are used to reduce wear and tear on moving parts, and can even improve performance in some cases. In this article, we wil......
Eight Braking Faults and Causes of Variant Transport Aircraft
Abstract
The potential of the modern transport aircraft has been seen on the runway and in the air. One of the most challenging and important aspects of aircraft performance is brake systems. This paper explores the most common braking faults of transport aircraft and their causes. The eight major......
An Example of Stepping Motor Driver Troubleshooting
Troubleshooting a Stepper Motor Driver
A stepper motor driver is a device that controls the stepping motion of a stepper motor. It is designed to provide precise control over the rotation of the motor and its associated elements. In some cases, a stepper motor driver can have difficulty operating......
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