Note: The spare parts listed are old models that are quite rare and are no longer in production. The new model of Spare Parts is not compatible with the equipment currently in use and has a high price.
Note: The provided spare parts are relatively rare old ones. New spare parts cannot be compatible with existing equipment. At present, the price is very high.
Note: According to the proposed list, spare parts are quite rare old spare parts, which have not been produced, and the new spare parts do not support the equipment currently used and are expensive.