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JB/T 7723.1-1995 Technical Specifications for Knapsack Spray Powder Machines JB/T7723.1-1995 Standard Download Decompression Passw
This standard specifies the performance test and production test of grain cleaning machines (hereinafter referred to as grain clea
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging and storage of grain cleani
This standard specifies the model, parameters, technical requirements, test methods and acceptance criteria of drinking fountains.
This standard specifies the types and basic parameters of electric brooding umbrellas, technical requirements, test methods, inspe
This standard specifies the structural type and basic parameters, technical requirements, test methods, inspection rules and requi
This standard specifies the test method for the impact toughness of fatigue crack specimens of welded joints, that is, the ECO tes
This standard specifies the four-point bending fatigue test method for welded joints. This standard is applicable to fatigue tests