Designing – Combined furnace

tmp3201-15The combined furnace consists of a heating insert with foundation combustion and ceramic smoke ducts, instead of an additional heating box between the heating insert and the chimney connection. In shaping these smoke channels, we have … read on

Steel painting

Old, strongly rusty steel bridge to be repainted. Please list the necessary steps in this regard
These steps are as follows::
1) grinding the steel structure with blast furnace slag;
2) painting with paint … read on