Fifty. Inquiring about relevant information shows that Shangdegang of Longkou Jiayuan is 50 years old this year. Longkou Jiayuan Industry & Trade Co., Ltd. was established on February 27, 2004 with a registered capital of 500,000 yuan. The legal representative is Shang Degang, and the business status is opening. The registered address is south of Dongyiyuan Road, Huangcheng West Ring Road, Longkou City, Shandong Province.