... tools and mechanical parts, buildings used for housing aircraft structural parts, escalator.1.Type:Round bar,Angle bar,Square bar,Flat bar,Hexagonal bar.2. ... from 4x4mm to 100x100mm. 4).Flat bar sizes:Thickness from 2.5mm to 80mm and width from 15mm to 250mm 5). ... steel sheet, stainless steel pipe, stainless steel coil,stainless steel bar and so on. YADA steel is a highly professional manufacturer ...