(1) JNHG dia matihanina freins pad bobongolo orinasa,
(2) Ho an’ny lavaka lava misy halalin’ny 200mm mahery, ilaina ny fandavahana lavaka lalina
(3) Ny halalin’ny fandavahana lava indrindra dia 2000mm
(4) Basy drill bit, miantoka mafy ny fandavahana marina
(5) Azo ampiharina amin’ireto lasitra manaraka ireto:
habetsan’ny bobongolo frein,ny androm-piainan’ny bobongolo frein,quiz bobongolo frein,ny fanaraha-maso ny bobongolo frein,ny fibaikoana ny bobongolo kiraro frein,ny fampianarana bobongolo frein,ny milina fitotoana lasitra frein,ny lasitra vita amin’ny friction amin’ny drywall,kito-kiraro frein miaraka amin’ny spring royal enfield ,