Rubber tubes GOST 5496-78
1C Acid and alkali resistant Acid, water, alkali, air from -30C to +50C 2C Heat resistant Air (up to 90°C), air-steam (up to 140°C). From -30°С to + 140°С 3С Frost-resistant Air, nitrogen, inert gases from -45С to +50С 4С Oil and petrol resistant Oil, gasoline from -30°С to + 50°С 5С Unified Any from -50С to +50С
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