Valve guide1) This product is made by ferromolybdenum material, with special treatment on the appearance to prevent the surface from being damaged easily. The inner hole is precisely reamed. after endless precision grindings, the round head can easily fit into the cylinder. 2) Quality control: quality guaranteed by ISO9001 system3) Packing:excellent box and carton,special design according to customer's request4) OEM accepted 5) Sample available 6) Main market: Africa, Middle East, Middle Asian,South America, North America,Europe,South East Asiancylinder diameter from 150 180mm. SERIES: 1.YANMAR 2.DAIHATSU 3.SULZER 4.MAN B&W 5.WARTSILA 6.MAK 7.MAKITA 8.MWM 9.STOCK 10.DEUTZ 11.SKL 12.MITSUBISHI 13.AKASAKA 14.HANSHIN 15.NIIGATA 16.PIELSTICK . . . . Welcome to inquiry us for more information. our website: www,baumgroup,cn