投标人必须为国外制造厂商或国外制造厂商的国外总代理商，并出具生产商的授权书。
The bidder must be from foreign producer or its exclusive agency, it should show the original of letter of authority from the manufacturer.
管道投标人必须为国外制造厂商或国外制造厂商的国外总代理商，并出具生产商的授权书。
The bidder of pipe must be from foreign producer or its exclusive agency, it should show the original of letter of authority from the manufacturer.
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