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| см. фланцы с плоской поверхностью (flat faced flange: The flat face flange's gasket surface is in the same plane as the bolting circular face Bauirjan) | |||
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| см. фланцы с плоской поверхностью (flat faced flange: The flat face flange's gasket surface is in the same plane as the bolting circular face Bauirjan) | |||