WE F IR iJll ^
?7In
&± m Eh "P f&is
30° ~ 45°
nf/H JSW-frE
PPxlj^^
± m =f ?|J?L;§T
ffi 45° , npiif^^
1/4 iiEh ?|J?L^T
ir± l/4{lSEh :, ^ ,r
tH'/p
179
^ftj 3/4 15° - 30°
W Eh, m 15° - 30°
30°,
ip^fetew
ig]'(4
^'¥ SflJ 3/4
tff- # Eh. m
w, mm
J&S 30°,
BP^tciSP
iRi-ti