175 × 145mm right-handed double-layer composite mechanical platform, damped double-slice clamp design, can be placed at the same time two slices for inspection and comparative analysis. Or equipped with 187 × 166mm large double-layer composite mechanical platform, bi-directional wire rail drive, left and right hand positions are optional; 150mm × 162mm ceramic painting platform is available, which is not only wear-resistant and corrosion-resistant, but also reduces the deformation of the platform brought about by temperature changes.