双边的

The Internet offers an open platform for new E-commerce, removing the long lead times, asset specificity, and bilaterality of E-commerce based on the traditional proprietary EDI.

因特网为新子商务提供了一个开放平台，去除了漫长交订货时间，资产管理专业知于传统专有子数据交换平台子商务双边性。

Such as the synchronization counter-rail and pressed compact for the edge smoothing tool,the press plate and wormgear for the line edging tool,the gear and the bear for the washing tool.

用于双边磨边步带导轨、压块，直线磨压传板、蜗轮，清洗齿轮、轴承等。