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MT 519-1995 Technical requirements for detonating cords permitted for use in coal mines
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MT 519-1995 Technical conditions for permissible detonating cords in coal mines MT519-1995 standard download decompression passwor
2025-03-14 category：Coal Industry Standard (MT)+ View
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MT 458-1995 General technical requirements for hydraulic supports with sliding top beams
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This standard specifies the general technical requirements, test methods, inspection rules, marking, packaging, transportation and
2025-03-14 category：Coal Industry Standard (MT)+ View
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MT 446-1995 Technical requirements for electrochemical carbon monoxide sensors for coal mines
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This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage
2025-03-14 category：Coal Industry Standard (MT)+ View
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MT 454-1995 Specification for carbon dioxide absorbents for compressed oxygen breathing apparatus and compressed oxygen self-rescuers - calcium hydroxide
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This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage
2025-03-14 category：Coal Industry Standard (MT)+ View
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MT 451-1995 General technical specification for safety performance of flameproof low voltage three-phase asynchronous motors for coal mines
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This standard specifies the safety performance requirements, test methods and inspection rules for flameproof low-voltage three-ph
2025-03-14 category：Coal Industry Standard (MT)+ View
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MT 448-1995 Specification for ultrasonic vortex wind speed sensors for coal mines
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This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, and storag
2025-03-14 category：Coal Industry Standard (MT)+ View
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MT 443-1995 General technical requirements for sensors used for underground coal mine environmental monitoring
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This standard specifies the general technical requirements, test methods, inspection rules, marking, packaging, transportation and
2025-03-14 category：Coal Industry Standard (MT)+ View
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MT 447-1995 Technical requirements for electrochemical oxygen sensors for coal mines
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This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage
2025-03-14 category：Coal Industry Standard (MT)+ View
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