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NJ 431-86 Technical Conditions for Welding and Repairing Defects in Gray Iron Castings
Defect Repair Of Grey Iron Casting
Grey iron castings are commonly used for casting structural parts in many industrial equipment. According to their structural characteristics, defects are prone to occur during the process of grey iron casting.Moreover, the defects of grey iron castings are usua......
1067 
Riley
Agricultural composite steel (YB/T5003-1993)
Introduction
Farm use composite steel is a type of boneless steel. It is made of composite steel tube, cylindrical steel and flat steel. In 1993, the Ministry of Agriculture issued the national standard YB /T5003-1993 for farm use composite steel, which stipulated the production technology, size,......
Metal material laboratory uniform corrosion full immersion test method GB 10124-88
The Uniform Immersion Corrosion Test Method for Metal Materials in the Laboratory
The Uniform Immersion Corrosion Test Method for Metal Materials in the Laboratory is the most commonly used test method to investigate the corrosion resistance of metal materials. It is performed according to the pr......
Metal pipe hydraulic test method GB 241-90
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Hydraulic Testing of Metal Tubes
Hydraulic testing of metal tubes is a type of test that is used to test the pressure capability of a tube. It applies hydraulic pressure to different points of the tube, to determine its strength and durability. This type of testing is important for a vari......
Metal bending test method GB232-88
The bending test of metal is a widely used test method in the field of metal shape and size control. It can be used to measure the load-bearing capacity, plastic deformation and springback of various metal materials. As an important detection method of metal materials, bending test has a certain i......
Malleable Iron Castings (Abstract) GB 9440-88
GB 9440-88 is a national standard issued by the Ministry of Industry and Information Technology of the Peoples Republic of China. It specifies technical requirements, test methods and inspection rules, conditions of supply and acceptance, and packaging, marking and quality certificate of cast iron......
GB 3838-88 Surface Water Environmental Quality Standard
GB 3838-88 Groundwater Environment Quality Standard
Introduction
The quality of groundwater is important for human activities, environment protection and ecological security. To ensure the quality of groundwater, the Environmental Protection Agency of China (EPA) established the Groundwater Env......
JGJ81-2002 Construction Steel Structure Welding Technical Regulations (Part 32)
Welding technique in architectural steel structures referred to the requirements of JGJ81 - 2002
Architectural steel structures refer to the structures of buildings, bridges, automobiles and ships constructed by metal materials. In terms of steel, it is the skeleton composed of various metal allo......
Low alloy steel welding rod GB 5118-85
Introduction
Low alloy welding electrodes are used when welding low alloy steels and are mainly used as filler metal electrodes in gas metal arc (GMAW) and gas tungsten arc (GTAW) welding processes. Low alloy welding electrodes are made of metals and alloys such as nickel and aluminum, which allo......
Low alloy steel electrode size requirements (GB/T 5118-1995)
Low Alloy Steel Electrode Sizes Requirements (GB/T 5118－1995)
Low Alloy Steel Electrodes (LASES) are commonly used for welding and repair applications in industries such as vehicle manufacturing, general construction and shipbuilding. LASES are available in a range of sizes and shapes, from care......
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