Assist me in finding a Chinese manufacturer

I am looking for someone to assist me in finding a suitable manufacturer of a product. I work in the metal business specifically tungsten and I am looking for a tungsten parts manufacturer. The right manufacturer will be able to either fabricate my specific design or use a current design. I would imagine most would have knowledge of the product type. I will hire someone who can clearly and efficiently communicate the findings with me. You will need to create a spreadsheet of the costs of each manufacturer you find. I will need a report that includes their contact information. The breakdown must include minimum order quantities, cost of samples, estimated cost of shipping, time needed to fulfill order, names and contact information of the person I would speak with. I may need continued support between myself and the manufacturer and I will pay you if that should occur. I need a minimum of 4 manufacturers of tungsten products to compare. They must be the original manufacturer and not a third party buyer. There are additional details I will save for the hired party, but please use this as a guide for whether or not you can complete this task. Thank you