... main machine:1 set, water & acid surfacing system:1 set, electric control system:1 set. 5. Pasting processGrid feeding—pasting— ... . The bearings of the equipment adopt the concentrated lubricating system and can be easilylubricated and repaired, and it prolong ... hopper flipping: air motor drives gear and ratchet wheel self-lock system, double button control flipping of the hopper. TD70 Automatic ...