Beijing Road Friend Science & Technology Development Co., Ltd. is a professional company for traffic products, mainly in the field of traffic warning signs. We integrate the R&D and production. Our main products are plastic traffic cone, warning triangle, delineator, road stud, rubber road cone, speed hump, traffic barrier, reflective vest and other traffic safety product. We also provide related service on technique, product production, and marketing. All our products are in accordance with traffic safety standard of our country. We have rapidly developed into a company with vigor...