赞比亚采购需求：护栏，高速公路护栏，W梁护栏，护栏，护栏道闸，防撞护栏

I am looking to source tray cables with a straight ladder type design. Specifically, I need these cables made from galvanized iron (GI) that has a powder-coated finish. The color should be a standard grey to match our existing infrastructure. For the specifications, I require a width of 300mm, a length of 3m, and a thickness of 2mm. It's essential that the product meets high durability standards, as we prioritize quality and strength in our projects. Please let me know about availability, pricing, and any lead times for these items. Any additional information regarding product variations or certifications would also be appreciated.