... "H" type aluminum, all fronts be well versed in, match with the A3 slab. 10, instrument table platform: specifications for ... socket system: trough the aluminum production, size is 40 x 60 mm, trough wire with 4 square line, with two multi-function ... in a helicopter setting control box. 14, surface treatment: above all on computer white paint assembly line, plug-in line ,assembly line,The belt line