1. The vehicle uses a wheelbase of 5350+1350 (mm) and 5800+1350 (mm). The corresponding relationship of the overall length (mm) = front overhang + wheelbase + rear overhang: 11550 = 1450 + (5350 + 1350) + 3400, 12000 = 1450 + (5800 + 1350) + 3400; 2. Straight arm crane model / maximum rated lifting mass (kg) / crane deadweight (kg) / load mass utilization factor is: SQS250/10000/5000/1.00; 3. Side/rear protection materials are Q235, welded, rear protection welded to the rear frame, rear protection cross-section size 150mm×50mm, lower edge 500mm above the ground; 4. ABS system manufacturer: Guangzhou Ruili Komi Automotive Electronics Co., Ltd., ABS model CM4XL-4S/4M; The vehicle is equipped with a driving recorder with satellite positioning function; 5. Optional high-top cab, headlights and masks, deflectors, sun visors, bumpers, taillights and optional fuel tanks, batteries, urea tanks, gas cylinders are installed on the left and right sides of the chassis. 6. Engine/fuel consumption: WP7.300E61/32.12 (L/100km), YCS06270-60/30.97 (L/100km), D67TCIF16 engine net power is 210kW and fuel consumption value is 31.98 (L/100km); this model can be equipped with direct power supply ETC vehicle-mounted device. 7. Optional crane shape, optional ladder, optional upper/middle seat operation, optional rear outrigger, optional crane seat different operation positions, optional boom style