Structural Integrity: Eventually, unchecked moisture can weaken the developing's framework, leading to highly-priced repairs.Permukaan expanded metal anti slip sehingga memudahkan air melewati lubang-lubang expanded dan mengalir ke bawah." CV. AGRO INDUSTRI SURABAYA " telp.031 3989496 fax. 031 3980197 , HP. 082129847777 , 082129846666 " e-mail. ind