Construction of the Proposed 4,000 sq.m., Four (4) Storey DENR 4A Office Buliding Located at Brgy.Mayapa, Calamba City Details Published on Wednesday, 04 December 2013 03:04 Hits: 6740 Invitation to Bid Construction of the Proposed 4,000 sq.m., Four (4) Storey DENR 4A Office Buliding Located at Brgy.Mayapa, Calamba City