The gearbox markets at home and abroad are relatively fragmented, and the market-leading companies have only 5-6% market share. At present, 30% of the domestic industrial gear industry depends on imports, and it is mainly high-end products. Therefore, enterprises with independent innovation capabilities will be able to develop better in the field of import substitution. In the past, most of the domestic transmission products were supplied to the metallurgical industry, but according to the capacity expansion plan, domestic transmission products will enter the mining, wind power and heavy machinery industries. Enter the high-end market. The technical advantages of domestic transmission products enable them to transfer products from low-end to high-end. Domestic transmission products have successfully entered the high-power and heavy-duty gearbox market, and have also entered the wind power gearbox market through cooperation with some domestic machinery research institutes. These products are expected to become new profit growth engines. The selling price and gross profit margin of wind power gearboxes are higher than the company's original products. From January to September 2008, the profit increased by 107% year-on-year. This is mainly due to the sharp increase in gearbox sales in the heavy machinery industry. Due to the substantial increase in raw material costs, the company's overall gross profit margin in the first nine months of 2008 has narrowed by approximately 3.5 percentage points. It is expected that in the context of rising prices, the gradual shift of low-end products to high-end products, and the decline in prices of steel and other raw materials, gross profit margins will recover in the future.