We are professional manufacturer (factory) that produce all kinds of engine valve ,valve guide ,valve seat ,piston ,piston ring and piston pin and so on parts .We have passed ISO 9001 and ISO/TS 16949. our engine valve are suitable for CATERPILLAR/DAEWOO/MITSUBISHI/HINO/SUZUKI/HONDA/DAF/PERKINS/BMW/TOYOTA/AUDI/KIA/KOMATSU/LADA/LEYLAND/VOLVO / VOLKSWAGEN/CUMMINS and so on . Due to product type too many ,please kind tell me OEM NO. and quantity , which will quote and send more information to you . E-catalogue will send to you if needed .