... resistant etc.2) Different Treatment: Piston roof anodizing, Pisotn with Graphite Sprayed,Tin coating piston , phosphating piston etc..3) ... Remark: 1) Quality gruantee,reliable quality TS16949/ISO9002,good packing,nice appearance. 2) Competitive and reasonable price,delivery on ... time. 3) Secure service & Packing Details:Meet your requiement. 4) Piston,piston ring,cylinder, ...