Does the subject want to ask "the difference between Pingmei main coking coal and Australian coking coal"? The difference between Pingmei main coking coal and Australian coking coal lies in different coal qualities, different ash and sulfur contents, different prices and different uses.

1. Different coal quality: the main coking coal of Pingmei belongs to long-flame coal, which is soft and easy to burn, and the produced coke has high calorific value. Australian coking coal belongs to short flame coal, which is hard and not easy to burn, and the quality of coke produced is also relatively high.

2. Different ash and sulfur content: The ash and sulfur content of main coking coal of Pingping coal is relatively high, while that of Australian coking coal is relatively low, so Australian coking coal is more suitable for producing high-quality steel.

3. Different prices: Due to different coal quality and quality, the main coking coal price of Pingmei is relatively low, while the price of Australian coking coal is relatively high.

4. Different uses: The main coking coal of Pingmei is mainly used to produce medium-high sulfur ferroalloy, coke for steelmaking and coke for ironmaking. Australian coking coal is mainly used to produce high-quality steel.