Does the subject want to ask, "Is there any manufacturer in Qingdao High-tech Zone that produces anti-bid products?"? Yes Qingdao Risheng Sign Co., Ltd. is a medium-sized enterprise that produces signs and labels. The company has advanced high-tech production equipment and strong scientific research and technical force. It is a product development, design, production and after-sales service. Since its establishment, it has a production history of nearly 10 years. Qingdao Wei Jian Metal Jewelry Co., Ltd. was established in 1995. The company mainly produces motor vehicle and subway (inside and outside) signs, expressway reflective signs and.