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JB/T 3242-1993 SWZ type integral bearing seat cross shaft universal coupling
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This standard specifies the classification, technical requirements, inspection rules, marking, packaging and storage of SWZ type i
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3241-1991 SWP type split bearing seat cross shaft universal coupling
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JB/T 3241-1991 SWP type split bearing seat cross shaft universal coupling JB/T3241-1991 standard download decompression password:
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3240-1999 Graphic symbols for forging machinery operation instructions
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JB/T 3240-1999 This standard is a revision of JB 3240-83 "Visual symbols for operating instructions of forging machinery". This st
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3238-1999 Image level
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JB/T 3238-1999 This standard is a revision of JB 3238-83 "Coincidence Level". During the revision, only the necessary editorial ch
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3235-1999 Determination of wear ratio of synthetic diamond sintered body
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JB/T 3235-1999 This standard is a revision of JB 3235-83 "Method for Determining the Wear Ratio of Sintered Artificial Diamond". O
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3234-1999 Artificial diamond sintered body for wire drawing dies
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JB/T 3234-1999 This standard is a revision of JB 3234-83 "Synthetic diamond sintered body for wire drawing dies". According to the
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3233-1999 Artificial diamond sintered body for drilling
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JB/T 3233-1999 This standard is a revision of JB 3233-83 "Synthetic diamond sintered body for drilling". According to the requirem
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3232-1994 Universal joint needle roller bearings
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This standard replaces JB 3232-83 and ZB J11 014-88. This standard specifies the structural type, code method, basic dimensions an
2025-04-26 category：Machinery Industry Standard (JB)+ View
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