ГОСТ 2601— 74 Стр. 35
Welding
Welding flux
Welding head
Welding machine
Welding tractor (self-propelledwelding head)
Welding without backing
W
W
e
e
l
ld
di
in
ng
g u
zo
n
n
d
e
er controlledatmosphere
Weldment
Wire-guide
1
166
133
131
134
96
54
62
60
136