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Search results for keyword: supervision
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 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 ......
tags: sampling gas shall sampling samples products
1019
Sophie
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 ......
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......
SZ124 balance wheel type sand mixer operating procedures
Operating Guidelines of SZ124 Swing- type Mixing Sand Machine 1. Pre-operation Inspections Before using the SZ124 swing-type mixing sand machine, it is necessary to check the parts of the machine. The inspection items should include the rotating parts of the motor, the belt drive, the safety p......
tags: machine mixing sand machine sanding all
1056
Hannah
Technical conditions for cold-formed steel (GB/T 6725-1992)
GB/T 6725-1992 Cold-bent steel technical conditions This general technical conditions for cold-bent steel GB/T 6725-1992 stipulates the order and technical requirements for the cold-bent of steel plates and narrow strips. This code is applicable to cold-bent steel plates with thickness of ≤1.5......
tags: coldbend steel force steel bending cold
1020
Simon
GB 3531-1996 Dimensions, shapes, weights and allowable deviations of low-alloy steel plates for low-temperature pressure vessels
Low Alloy Steel Plate Dimensions, Shape, Weight, and Allowable Tolerance for Pressure Vessels Used at Low Temperatures Low alloy steel plate is an important component in the production of pressure vessels used in low temperatures due to its high strength, durability, and corrosion-resistant prope......
tags: low plate steel low steel pressure
1052
Mia
Domestic CNC machine tools standard
Introduction With the advent of the 21st century and the rapid development of modern technology, numerically controlled machine tools and tools have increasingly become one of the important tools for manufacturing, especially in China. In modern factories, numerically controlled machine tools and......
tags: tools controlled machine machine tool cutter
1031
Emily
Dimensions, shape and weight of waste heat treated steel bars (GB 13014-1991)
Hot-Rolled Steel Bars Hot-rolled steel bars are metal bars that are hot-processed from raw steel material, which is cooled and then processed through heat-treatments, depending on the grade and application of the metal bar. Hot-rolled steel bars are produced at temperatures higher than 1900°F (1......
tags: steel bars hotrolled steel bars national
1026
Lily
GB1591-1979 "Technical Conditions for Low Alloy Structural Steels"
Low Alloy Structural Steel Technical Conditions GB 1591-1979 Introduction The formulation and promulgation of GB 1591—1979 “Low Alloy Structural Steel Technical Conditions” is mainly to promote the development and use of steel structures with excellent performances in our country. GB 1591—1979 ......
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