1. Chrome thickness: 0.2mm-0.3mm 2. Chrome layer hardness:> HV900 3. Bore surface roughness: Bore straightness error: <0.02mm 4. Bore cylinder error: <0.02mm / support 5. Cylinder diameter: φ140mm ~ φ360mm 7. Length: according to customer’s request 8. Pledge: high quality products and excellent maintenance 9. Capacity: 50,000-80,000 cbm 10. Application: concrete pump with brand Putzmeister, Schwing, sany, Zoomlion, Kyokuto, Cifa, IHI. Outer diameter(φmm) inner diameter(φmm) Length Travel 280 260 2345 2200 280 260 2245 2100 280 260 2145 2000 280 260 2045 | 1900 258 230 2146 2000 258 230 1946