6S
MANAGEMENT
STRICK SELECTION
OF LAND
STRICT SELECTION
OF SEED POTATO
STRICT SELECTION
OF CULTIVATION
STRICT SELECTION
OF STORAGE
STRICT SELECTION
OF GRADE
STRICT SELECTION
OF PACKAGE
-->
6S
MANAGEMENT
STRICK SELECTION
OF LAND
STRICT SELECTION
OF SEED POTATO
STRICT SELECTION
OF CULTIVATION
STRICT SELECTION
OF STORAGE
STRICT SELECTION
OF GRADE
STRICT SELECTION
OF PACKAGE