Pro you are good, and now we recommend a common excavator piston and piston rod seal is burst models imported from Sweden SKF-IDI fortified main oil seal This purchase is pure BASF materials imported from Germany, PU, material, after a series of professional production process coupled with the professional testing technology, coupled with imports of star ring was made! This product resistant to pressure up 120MPA. adapt to the temperature of -20 degrees to 120 degrees between the work environment For more info, please contact customer service this product commonly used in:! excavators, motorized shovels, wheel loaders, bulldozers, cranes, trucks, forklift trucks, garbage trucks, harvesters, tractors, presses, robots, injection molding machine a variety of machinery within