engineer kenek hamba wela.. design eka kara ganna.. oya slab eke karana yana wadey anuwa, pasa anuwa wenas wenawa.. .. slab ekak madin nikan hithuna paliyata kanu danna baha.. palehain ena kanuwak ma udata genna ona.. ekata lap karanna kambi thiyanna ona..
slab thicknes eka normaly 125 mm ...