This Japanese customer is the manufacturer of air brake compressor. They can produce air brake compressor crankshaft themselves. For some reason, they wanted to find another crankshaft supplier. They contacted Nazhen in 2014. They have high requirements on the quality of the crankshaft. They provided us the raw material of the crankshaft first and then brought the machining finished crankshaft from us for testing. And the quality met their requirements. After that, they selected the crankshaft material supplier in China and Nazhen was responsible for crankshaft machining. And the finished products met the requirements as well. This lasted about a year. And they provided the testing report of our crankshaft. Finally, all our products met their requirements, so we established long-term cooperation.