GB - Chinese national standards

Electrical insulating materials used under severe ambient conditions—Test methods for evaluating resistance to tracking and erosion

Available languages: English, Chinese

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Resin based reactive compounds used for electrical insulation--Part 2:Methods of test--Methods for coating pourders for electrical purposes

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Type,main dimension, material and marking of mechanical seals

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Screw thread shanks for thread forming screw--Metric coarse thread series

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Chemical reagent--Ammonium dichromate

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Cross recessed pan head thread rolling screws

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Cross recessed countersunk head thread rolling screws

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Cross recessed raised countersunk head thread rolling screws

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Hexagon head thread rolling screws

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Hexalobular socket head cap thread rolling screws

Available languages: English, Chinese

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