%0 Journal Article %T RESEARCH OF WELDING INTO SOCKET OF POLYPROPYLENE PIPES AT LOW AMBIENT TEMPERATURES %A Botvin, G.. %A Danzanova, E.. %A Gerasimov, A.. %K Polypropylene, welding into the socket, welded spigot-and-socket joints, fracture stress, strength %J Bulletin of Belgorod State Technological University named after. V. G. Shukhov %D 2016 %N 1 %P 5 %I Belgorod State Technological University named after V.G. Shukhov