| d
|
D |
Opening |
glue covering type
iron covering |
Open
ing
|
iron cover
ing
| touch
ed glue cover
ing type |
rotar
y-pre
ven
ting
iron cove
ring type |
Cr
(N) |
Cor
(N) |
grease lubrication |
oil lub
ri
cation |
da
(least)
|
ra(su
pre
me) |
ra1
(sup
rem
e ) |
Open
ing |
glue cover
ing type
iron cover
ing
|
|