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JB/T 3228-1999 Distribution and dimensions of slots and punch (ejector) rod holes for fastening dies of closed mechanical presses
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JB/T 3228-1999 This standard is a revision of JB 3228-83 "Distribution form and size of slots and punch (ejector) rod holes for fa
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3227-1999 General technical requirements for high precision gear hobs
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JB/T 3227-1999 This standard is a revision of JB 3227-83 "General Technical Conditions for High Precision Gear Hobs". During the r
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3223-1996 Welding material quality management regulations
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This standard specifies the management requirements for welding materials (welding rods, welding wires, flux, alloy powders and we
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3208-1999 Codes for preparatory function G and auxiliary function M in the program segment format of punch tape for CNC machine tools
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JB/T 3208-1999 This standard adopts ISO 1056:1975 "Codes for preparatory functions G and auxiliary functions M in the program segm
2025-04-26 category：Machinery Industry Standard (JB)+ View
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Test method for accelerated dew corrosion of rust preventive oils and greases
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JB/T 3206-1999 JB/T 3206-1999 Test method for accelerated condensation corrosion of rust-proof greases JB/T3206-1999 Standard down
2024-08-06 category：Machinery Industry Standard (JB)+ View
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JB/T 3200-1997 External filter surface rotary drum vacuum filter
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This standard specifies the type and basic parameters, technical requirements, test methods, inspection rules, marking, packaging,
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3193.2-1999 Gear Shaping Machine Series
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JB/T 3193.2-1999 This standard is a revision of JB/Z 118-75 "Gear Shaping Machine Series". During the revision, only editorial cha
2025-04-26 category：Machinery Industry Standard (JB)+ View
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JB/T 3193.1-1999 Gear Shaping Machine Parameters
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JB/T 3193.1-1999 This standard is a revision of JB 1549-75 "Gear Shaping Machine Types and Basic Parameters". During the revision,
2025-04-26 category：Machinery Industry Standard (JB)+ View
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