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JB/T 7530-1994 General technical requirements for argon, nitrogen and hydrogen for heat treatment
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This standard specifies the technical requirements, uses, inspection methods, acceptance rules, and marking, packaging, storage an
2024-10-03 category：Machinery Industry Standard (JB)+ View
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JB/T 7529-1994 Heat treatment of malleable cast iron
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This standard specifies the requirements for raw materials, equipment, process and quality inspection during the heat treatment of
2024-10-03 category：Machinery Industry Standard (JB)+ View
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JB/T 7528-1994 Methods for evaluating casting quality
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This standard specifies the quality assessment methods for various cast metal and alloy castings produced by sand casting, metal m
2024-10-03 category：Machinery Industry Standard (JB)+ View
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JB/T 7527-1994 Method for determination of properties of self-hardening furan resin for casting
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This standard specifies the technical properties and test methods of furan resin synthesized with furfuryl alcohol as the main raw
2024-10-03 category：Machinery Industry Standard (JB)+ View
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JB/T 7526-1994 Self-hardening furan resin for casting
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This standard specifies the brand representation method, technical requirements and inspection rules for self-hardening furan resi
2024-10-03 category：Machinery Industry Standard (JB)+ View
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JB/T 7524-1994 Ultrasonic flaw detection of welds in building steel structures
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This standard specifies the main method and quality grade assessment of ultrasonic flaw detection of welds in building steel struc
2024-10-03 category：Machinery Industry Standard (JB)+ View
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JB/T 7523-1994 Technical requirements for materials used for penetrant testing
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JB/T 7523-1994 Technical requirements for materials used in penetration testing JB/T7523-1994 Standard download decompression pass
2024-10-03 category：Machinery Industry Standard (JB)+ View
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JB/T 7522-1994 Measurement method of ultrasonic velocity of materials
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JB/T 7522-1994 Measurement method of ultrasonic velocity of materials JB/T7522-1994 Standard download decompression password: www.
2024-10-03 category：Machinery Industry Standard (JB)+ View
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