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JB/T 6500-1992 Impact water well drilling rig
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This standard specifies the main technical parameters, technical requirements, inspection rules, marking, packaging, transportatio
2024-10-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6498-1992 Valve structural elements Dimensions of valve disc and valve welding connection groove
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JB/T 6498-1992 Valve structural elements Dimensions of valve disc and valve welding connection groove JB/T6498-1992 Standard downl
1970-01-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6497-1992 Valve structural elements Valve welding end dimensions
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JB/T 6497-1992 Valve structural elements Valve welding end dimensions JB/T6497-1992 Standard download and decompression password:
1970-01-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6496-1992 Valve structural elements Stuffing box dimensions
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JB/T 6496-1992 Valve structural elements Stuffing box dimensions JB/T6496-1992 Standard download decompression password: www.bzxz.
2024-10-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6495-1992 Valve structural elements Gate (or valve disc) T-slot dimensions
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JB/T 6495-1992 Valve structural elements Gate (or valve disc) T-slot dimensions JB/T6495-1992 Standard download decompression pass
2024-10-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6494-2002 Hopper type plastic dryer
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This standard specifies the basic parameters, technical requirements, test methods, inspection rules, as well as marking, packagin
1970-01-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6492-2001 Conical twin-screw plastic extruder
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JB/T 6492-2001 Conical twin-screw plastic extruder}
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JB/T 6492-2001 This standard is a revision of JB/T 6492-1992 "Conical Twin Screw Plastic Extruder". Compared with the original sta
1970-01-01 category：Machinery Industry Standard (JB)+ View
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JB/T 6491-2001 Counter-rotating twin-screw plastic extruder
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JB/T 6491-2001 This standard is a revision of JB/T 6491-1992 "Counter-rotating twin-screw plastic extruder". During the revision,
1970-01-01 category：Machinery Industry Standard (JB)+ View
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