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1 Standards GB12792-1991Rubber sheathed flexible mine cables.Flame retardant type cables carry out standard MT818-1999Flame retardant mine cables.Its flame retardant performance test carry
out MT386-1995.When ordering the old type cables with flame retardant or non-fire-propagating cables."MT386"or "flame retardant "must be noted. 2Characteristics Long term permissible working temperature is 65. 3Performance Insulated resistance constant of finished products ki(at 20);The rest are not less than 734M |
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