埃塞俄比亚采购需求：护栏，高速公路护栏，W梁护栏，护栏，护栏道闸，防撞护栏

I'm looking to source guardrails for an upcoming project, and I'd appreciate it if you could provide me with some details. Specifically, I'm interested in various specifications and materials you offer, as well as your pricing structure for bulk orders. Additionally, please let me know about your lead times and any quality certifications your products have. I want to ensure that the guardrails meet all necessary safety standards. Looking forward to your prompt response so we can move forward with this procurement.