Трубы бесшовные
Трубы стальные бесшовные ГОСТ 3262-75.
Ду 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
35, 36, 38, 39, 40, 41, 42, 44, 45, 48, 50, 51, 52, 53,
54, 55, 56, 57, 58, 60, 63, 64, 65, 68, 70, 73, 75, 76,
80, 83, 84, 85, 89, 90, 93, 95,102, 104, 108, 114, 121,
127, 133, 140, 142, 145, 146,,,,,,,,,,,,,,,,,,,,1420.