black annealed wire fence mesh 1.steel grating 2.Bearing bar pitch:30,40,60mm 3.Cross bar pitch;50,100mm black annealed wire fence meshsteel grating,expanded wire meshMaterial: Aluminium plate, thin low carbon steel plate, stainless steel plate, al-ma alloy plate, copper plate and nickel platecross bar pitches:maybe 24-200mm,of which 50mm,76mm and 100mm are recommended.Surface process of gratings ...