On January 25, 2019, the oil cylinders of 11 grate coolers of Anhui Panjing cement needed urgent repair and had to be delivered within one week. The situation of the cement plant was very good. Once the equipment stopped kiln, the loss was immeasurable. Our company hurriedly arranged production disassembly and cleaning, technical mapping and outsourcing processing. After several days of efforts, we finally delivered within the date specified by the customer, which was highly praised by the customer.