Concrete Pump

A truck-mounted concrete pump, 10 m long, dark grey chassis with a plant-yellow pump deck: a Z-folded four-section placing boom on a slewing pedestal with a delivery line clipped along it and a flexible end hose.

风格：low-poly, flat-shaded vertex colors, no textures, single shared material, so any set of these merges to one draw call; shares palette and scale with its kit