Without Jin Gangzuan, there would be no porcelain, which is a proverb. If you don't have the conditions or skills to accomplish something, don't be hard. On the contrary, to undertake something, you must have the conditions or skills to do something. Commentary: Jin Gangzuan: A drill made of diamond is an essential tool for drilling holes in porcelain. Porcelain work: To splice broken porcelain with a shovel, you need to drill a hole with a Jin Gangzuan, and then put the shovel. From Hao Yanfang and other "young Hu Yanqing" together: "Master Xiang, please rest assured! I dare not go to the east without a dragon catcher; I dare not go up the mountain without the ability to kill tigers' and' I dare not hold a magnet without Jin Gangzuan'. It's easy for a niece to hit a monk in the ring. "