Is it reliable for Shandong Han Yi Industrial Group to do customer service?

Reliable. Official website of the Administration for Industry and Commerce shows that Han Yi Industrial Group is a legal, regular and reliable enterprise registered in Weicheng District Market Supervision Administration of Weifang City. The address is located in the factory building along the south street of Chuangye Road, Yuqing Street, Weicheng District, Weifang City, Shandong Province.