28759.3-90
.
Steel butt welded flanges of vessels and apparatus.
Design and dimensions
01.01.92
400 4000 (, ) 426 720 0,6 6,3 , 70 540, , , .
28759.1.
. 1.2 D, D1, D2, D3, D4, D5, D6, D7, . 1.4 D , .