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Marginal cost the amount at any given volume of output by which aggregate costs are charged if the volume of output is increased or decreased by one unit.Fixed cost a cost which tends to be unaffected by variations in volume of output.Variable cost a cost which tends to vary directly with volume of output.
We are always committed to technology research and development. Our products are equipped with the latest technology to serve our customers in more than 160 countries around the world, bringing them huge economic benefits and employment opportunities.
We provide quality and efficient solutions to our global customers
Adopt sealed dust removal design, less dust, low noise, low carbon and environmental protection
All the service work we carry out always revolves around a core: customer satisfaction
Provide door-to-door installation services, guide the training of operating personnel, and ensure the effective operation of the machine
Provide regular return visit service to help users optimize maintenance equipment, analyze and solve problems