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THE HISTORY OF EATING UTENSILS
One of the key elements of any civilization is the tools and utensils used by its people for the purpose of eating and food preparation. Eating utensils are usually the first tools invented by people, as the need for them is universally experienced. Not surprisingly......
1021 
Madison
Converter production of GCr15 bearing steel has been successful
In the past few months, the leading bearing steel manufacturers in China have successfully produced GCr15 bearing steel using an electrolytic refining furnace. GCr15 bearing steel, also known as 52100 bearing steel, is a relatively hard and durable steel specifically designed for the manufacturing......
gb 3095-1996 ambient air quality standard
3095-1996 Air Quality Standards
The air quality standards issued by the Chinese government in 1996, gb 3095-1996, are used to evaluate the air quality of various areas. The standards, also called air quality index standards, are designed to both protect human health and promote the environment.
......
gb 5771-86 Diesel engine fuel injection pump delivery valve assembly technical requirements
，关于柴油机喷油泵出油阀偶件的技术条件。
Injection pumps are among the greatest advancements in diesel engine fuel delivery systems. The primary purpose of an injection pump is to control the timing and quantity of fuel injected into the engine. Outlet valves play a key role in determining the para......
gb 6653-94 Steel plates for welding gas cylinders
解析
gb 6653-94 Welding Cylinder Steel Plate
This standard gb 6653-94 provides requirements, test methods, inspection rules and packaging, marking, quality of welding steel plates for manufacturing various types of gas cylinders.
1. Scope
This standard applies to welded steel plates are used to......
gb 6681-86 General Rules for Sampling of Gas Chemical Products
General Principles of Gas Chemical Products Sampling gb 6681-86 “The General Principles for Gas Chemical Products Sampling” provides criteria for sampling variety of gas chemical products, as well as provisions and modeling diagrams of sampling device. This standard effectively protects the fair ......
gb/T 18437.1-2001 Technical Requirements for Refitting Gas Vehicles Compressed Natural Gas Vehicles
gb/T 18437.1-2001 Technical Requirements for Retrofitting of Gas Vehicles - Compressed Natural Gas Vehicle
Introduction
In order to improve energy efficiency, reduce energy consumption and reduce pollution, compressed natural gas (CNG) vehicles have become increasingly popular. This can be seen ......
gb/T 3222-94 Acoustic Environmental Noise Measurement Method
，内容是gb/T 3222-94声学 环境噪声测量方法
In 1994, gb/T 3222 was released by the China National Standards on Acoustics to provide a standard method to measure sound levels in the environment. The standard was developed to meet the needs of new acoustic construction regulations in China and to reduc......
gb12358-90 General technical requirements for gas detection and alarm devices in the working environment
Technical Requirements of General Gas Detection Alarms in gb12358-90 Workplace Environment
The main purpose of this technical requirement is to standardize the requirements of general gas detection alarms used in the workplace environment, to ensure the safety of staff and the safety of workplace......
gb50177-93 Specifications for Design of Hydrogen and Oxygen Stations
Hydrogen and Oxygen Station Design Specification
Hydrogen and oxygen are the basis of many industrial and chemical processes. The presence of both the material in an appropriate quantity is crucial in maintaining the quality of products being manufactured. For this reason, it is imperative that a......
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