-The number of the vendor or the raw materials that exist. If there is less negotiation power list sellers of the vendor to the purchaser of either high in price, quality and other trading conditions.-The level of incorporation of the seller of raw materials. If the seller has been assembled, the bargaining power high.-The number of raw material or feedstock sources if the materials have less bargaining power is high.-Difference and same of the raw material. If the materials are very different. The bargaining power high.
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