Here is the translation of the technical terms related to sunshades:
Regular heavy-duty: Front edge 55*46*1.3mm? Tube 70*1.5mm? Arm 59*31*2.0mm Small arm 51*26*1.8mm? Square tube 40*40*1.5mm
Semi-closed heavy-duty: Cover 137.8*107.8mm? Front edge 55*46*1.3mm? Drum 70*1.5mm Arm 59*31*2.0mm? Small arm 51*26*1.8mm? Square tube 40*40*1.5mm
Regular light-duty: Front edge 45*35*1.2mm? Arm 47.6*28.6*1.2mm Small arm 37.6*20.6*1.2mm? Tube 70*1.5mm? Square tube 35*35*1.5mm
Iron Arm Sunshade: Front edge drum 65*1.1mm? Arm 47.6*28.6*1.2mm Small arm 37.6*20.6*1.2mm
Full-enclosed type A: Front edge 2.8mm thick? Tube 70*1.5mm? Arm 59*31*2.0mm Small arm 51*26*1.8mm? Square tube 40*40*1.5mm? Both ends are made of plastic material
Full-enclosed type B: Deluxe type? Full aluminum alloy material? Tube 70*1.5mm? Arm 3.2mm thick? Small arm 3.0mm thick? Front edge 3.2mm thick? Both ends are made of thickened aluminum alloy, baked paint, and the surface is smooth. No square tube, directly wall-bracket, installation is more convenient and simple! All units are in millimeters.