... Zhuji Industrial Zone Dongpu Guangzhou China from 2003. Supply the excavator parts of Komatsu, Hitachi, Caterpillar, Daewoo, Kato, Kobelco, ... Hyundai, Volvo.We specialized in excavator parts. And we had cooperated with many big companies like ... .The main products:Seals:ORIGINAL/OEM Hydraulic cylinder Seal kits Boom, Arm, Bucket/Center Joint/Track Adjuster,Tensioner ...