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JB/T 6968-1993 Portable micro welding torch
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This standard specifies the product classification, technical requirements, test methods, inspection rules, marking and packaging
1970-01-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6967-1993 General technical conditions for electroslag welding
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This standard specifies the requirements for blanks for wire electrode electroslag welding and molten nozzle electroslag welding,
1970-01-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6966-1993 Appearance quality assessment method of brazing seams
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This standard specifies the evaluation method for the appearance quality of fiber seams. This standard is applicable to the inspec
1970-01-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6965-1993 welding operating machine
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This standard specifies the relevant terms, type expression, type classification, basic parameters, technical requirements and acc
1970-01-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6964-1993 Extra fine carbon steel welding rod
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This standard specifies the model, technical requirements, test methods, inspection rules, etc. of extra-fine carbon steel electro
1970-01-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6963-1993 Qualification of fusion welding process for steel parts
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This standard specifies the basic requirements for the qualification of fusion welding procedures for steel welded structures. JB/
1970-01-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6959-1993 Design specifications for sheet metal drawing process
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This standard specifies the process parameters and specifications required for the design of sheet metal drawing processes. This s
1970-01-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6958-1993 General technical conditions for precision blanking parts
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This standard specifies the technical requirements, test methods, inspection rules, marking, packaging and transportation of preci
1970-01-01 category：Machinery Industry Standard (JB)+ View
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