南非采购需求：金属格栅板、夹层格栅、金属走道地板、钢丝网地板板、钢丝网格栅、钢丝网地板

I'm looking for a quote on your grey rust protection solution in a 5-liter container. Could you please provide me with the pricing details for this product? Additionally, it would be great if you could include any information on bulk order discounts, available shipping options, and estimated delivery times to Durban, South Africa. I'm particularly interested in the quality and any certifications associated with the rust protection product. If there are different formulations or variations available, please share that info as well. Looking forward to your prompt response so I can make an informed decision. Thank you!