青云翻译

To network with the channel 10 # a3 steel materials, grounding according to the corresponding national standards for construction

Network channel steel 10#A3 steel for materials, construction of grounding grids based on appropriate national standards

The network channel steel material uses the 10#A3 steel, the counterpoise basis corresponding national standards construction

Web to channel steel materials, in 10 # A, steel, grounding web based on national standards equivalent to construction

Network channel steel 10#A3 steel for materials, construction of grounding grids based on appropriate national standards