荷兰采购需求：化妆品软管、塑料化妆品软管、洗发水瓶、乳液软管、护手霜软管、眼霜软管

We're looking to place an order for 5,000 pcs of 250 ml tubes. We prefer plastic or aluminum as the material with a metallic silver finish. The caps should be a specific shade of pink (flip-top). Can you provide info on the cost for a custom cap color? Additionally, it would be great to know the production lead time, options for metallic effect samples (like photos or a catalog), and details on certification and packaging. Thanks!