Standard Avoch. Pipelines of copper pipe for domestic water and heating General specifications. One hundred NP ABOK "6.3.1-2007 / Standart AVOK. Truboprovody iz mednykh trub dlya sistem vnutrennego vodosnabzheniya i otopleniya Obshchie tekhnicheskie usloviya. STO NP "AVOK" 6.3.1-2007