I don't know if you mean 47 Dongchang East Road. It used to be called Shandong Liaocheng Internal Combustion Engine Factory, but now it is called Jichai Liaocheng Machinery Co., Ltd., just opposite the senior technical school.
Mainly produces internal combustion engine parts, food machinery, tractor parts and so on. It may be the oil pollution, so it's a little polluted and dirty.