Common code-named Tube 1 / 2 3 / 4 1,1216 2025 meaning
<
p
>
1
/
2
,
3
/
4
,
1
i
s
t
h
e
s
t
a
n
d
a
r
d
n
o
m
i
n
a
l
p
i
p
e
d
i
a
m
e
t
e
r
,
a
r
e
c
o
m
m
o
n
l
y
k
n
o
w
n
a
s
:
h
a
l
f
a
n
i
n
c
h
o
r
4
p
o
i
n
t
s
,
6
p
o
i
n
t
s
,
1
-
i
n
c
h
t
u
b
e
o
r
p
i
p
e
f
i
t
t
i
n
g
s
n
a
m
e
,
f
o
r
e
x
a
m
p
l
e
,
c
h
a
r
g
e
4
,
4
e
l
b
o
w
,
a
n
d
m
a
n
y
m
o
r
e
f
o
r
w
a
t
e
r
t
u
b
e
.
<
/
p
>
下一页：
[来源：Korean KS standard tube]
[作者：Korean KS standard tube]
[日期：10-05-25]
[热度：]
