What impact does using different types of steel to make a mold have on its lifespan? During training, it was mentioned that a mold could withstand 80,000 cycles; was this referring to domestic or German steel? What is the approximate theoretical lifespan of the same mold made from German, Chinese, and Harda steel sheets?

A:Feedback indicates that both German and Chinese paving bricks have been used over 80,000 times, and there is currently no theoretical lifespan. If customers have high requirements for the quality of paving bricks and are not overly price-sensitive, it is recommended to specify "German paving bricks" in the inquiry notes.