|
charac
teristic
|
small size,
light weight,
flexible operation
|
strong impact,
easily breaking,
steady percussive frequency,
|
small size,
light weight,
easily operate,
applicable to
municipal
subjects
|
steady percussive frequency,
easily operate,
durability
|
-
|
new technology,
strong impact,
steady percussive frequency,
durability
|
strong impact,
steady percussive frequancy,
easily maintain
|
strong
impact
steady
percussive
frequency,
new
design,
reinforced
body
|