西班牙采购需求：钥匙扣、个性化金属钥匙扣、定制金属钥匙扣、金属钥匙扣、定制金属钥匙扣、空白金属钥匙扣

I'm looking to create a high-quality commemorative medallion for sailors who navigate the Cape Horn meridian under sail. Key specs include a 10cm diameter, 1cm thickness, and solid bronze or brass material. The design features a relief of Poseidon with an anchor backdrop, alongside the inscriptions “CAPE HORN” and “ORDEN DE MAGALLANES.” Please provide pricing for 10, 50, and 100 units, as well as the estimated delivery time. Additionally, I need details about your packaging options, preferably in a wooden box or velvet case.