It depends on the kind of products, asphalt singles can be 25-45 years, warranty by manufacturers, materials only.* X0 z) P2 M$ z7 A
Labour, usually 1 year service provided by builder.
ceramistpalace 发表于 2013-1-10 18:23 ; G5 i7 r7 F2 e8 q/ z! ^
It depends on the kind of products, asphalt singles can be 25-45 years, warranty by manufacturers, m ...