Re-advertisement: Quotations are hereby invited for the following: Wheelchair ramp service on buses. Specifications: Wheelchair ramp service on 8 x buses as follows: (1). CA 435 458 - Air boosters of doors and rollers replaced. Middle step replaced the metal sheet. Bottom step remove plate clean and replace. Test the motor and service. Check hydraulic pipes and replace; (2). CA 335 836 - Air boosters of doors and rollers replace Middle step replaced metal sheet. Bottom step remove the plate clean and replace. Test the motor and service Check hydraulic pipes and replace; (3). CA 423 499 - Air boosters of doors and rollers replace. Middle step replaced metal sheet. Bottom step remove the plate clean and replace. Test the motor and service. Check hydraulic pipes and replace; (4). CA 415 752 - Air boosters of doors and rollers replace. Middle step replaced metal sheet. Bottom step remove plate clean and replace. Test the motor and service. Check hydraulic pipes and replace; (5). CA 940214 - Hydraulic pipe leak Replace handle rubbers. Check test motor and service; (6). CA 940839 - Hydraulic pipe leak Replace handle rubbers. Check test motor and service; (7). CA 366803 - Air boosters of doors and rollers replace. Middle step replaced metal sheet Bottom step remove the plate clean and replace. Test the motor and service. Check hydraulic pipes and replace; (8). CA43507 - Air boosters of doors and rollers replace. Middle step replaced metal sheet. Bottom step remove the plate clean and replace. Test the motor and service. Check hydraulic pipes and replace; (9). CA 438624 - Air boosters of doors and rollers replace. Middle step replaced metal sheet. Bottom step remove the plate clean and replace. Test the motor and service. Check hydraulic pipes and replace. (投標 №107333941cn)