美国采购需求：W 梁护栏、护栏板、镀锌钢护栏、高速防撞护栏、高速公路护栏、高速公路护栏供应商

I'm looking to procure Class A, Type 2 hot dip galvanized products for an upcoming project. It's crucial that these materials meet specific quality and durability standards, given their intended applications. Additionally, I need some information regarding the dimensions, coating thickness, and any certifications or compliance with industry standards. Could you also provide your pricing structure based on different order quantities? We are considering bulk purchases, so any volume discounts would be of great interest. Lastly, please let me know about the lead time for production and delivery, as timing is a key factor for our project schedule. Looking forward to your detailed response!