你说的没错,是镀锌!请参考& U+ ]; R/ [" k0 H, Z
MFZn is zinc plate over an iron base + |/ ]/ _& r: v; U% v
T1: 4um min. salt test :<8m : 240 min >8m:480 minutes- q' w9 j d6 M0 @
T2:6um min. # v6 Z& f8 g* E9 z' D6 hT3:8um min. ! T) w0 }' N0 D4 v Y8 e- MC :clear' {6 v W. v& \5 C' g+ H# I