美国采购需求：停车柱、路障、除胎器、自动旗杆、升降柱、自行车停车架

I'm interested in understanding the origin of your products. Could you clarify whether they are manufactured in Europe or if they come from Asia? Additionally, knowing more about your supply chain would be helpful. Are there any specific certifications or quality control measures in place that reflect the standards of the region? This information will assist me in making an informed decision moving forward.