From the value chain point, for large tradition manufacturing business enterprise of our country, the B2B electronic commerce impact primarily the upper chain stage, namely between product manufactory and supplier contact.

• 论文从价值链的角度指出，对于我国大型传统制造型企业而言，B2B电子商务模式对价值链的冲击主要是上游阶段，即冲击产品制造商与供应商之间的相互联系。