英国采购需求：鱼胶原蛋白肽、牡蛎肽、牛胶原蛋白肽、大豆肽、核桃肽、蚯蚓肽

I'm interested in a custom blend of halal-certified collagen that combines halal bovine, marine, and chicken sources into one product. Ideally, this would be available in either powder form or as bulk raw material. Could you share details on the availability of such a blend, including the minimum order quantity and pricing? Additionally, I'd like to know the lead time for shipping to the UK and the halal certification status for each collagen source. We're looking for a reliable supplier for a long-term partnership, so a prompt response would be appreciated.