美国采购需求：建筑材料、建筑材料、施工脚手架、施工脚手架板、碗扣式脚手架系统、镀锌脚手架板

I'm looking to source hot-dip galvanized ringlock scaffolding, specifically with a diameter of 48.3 mm. Please provide me with your best pricing, available quantities, and any relevant product specifications or certifications you have available. Additionally, I would appreciate it if you could share your lead times and any potential discounts for bulk orders. If you have different grades or options for this type of scaffolding, please include those as well. Thank you!