FIELD: process engineering.
SUBSTANCE: flexible tube for packing is made from multilayer material comprising, at least, one first nonmetallic layer and second nonmetallic layer First layer consists of material with properties that allows welding first layer with second layer. Second layer consists of material with properties that do no allow welding second layer with first layer. Said first and second layers make inner and outer rube layers, respectively.
EFFECT: simplified production.
10 cl, 3 dwg
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