As special working equipment, engineering machine's weight has significant impact on working ability, such as excavator, wheel loader, motor grader and tractor dozer; their performance is depend on the machine weight. One of an important components on those machines named “counterweight”, provides balancing machine, increase machines working capability, and protect machine from damaged by other equipments. They are made of casting or fabrication normally and price is 5-6 RMB/Kg. The total cost is very high ...
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