The invention can greatly enhance the qualification rate of the printing stocks to more than 98% and greatly reduce the printing cost for the printing stocks.

本发明具有可以大大地提高承印物的品质，其合格率可以提高到98%以上，大大地降低了承印物的印刷成本的优点。

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Last week in our Off the Charts newsletter we highlighted some faulty action in the 3-D printing stocks and they all got hit pretty hard.

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But 3D printing stocks were quite a different story.

FORBES: Obama Tries But Fails To Ignite Apple And 3D Printing

Proto Labs is different from the other 3D stocks mentioned here in that it does not sell 3D printers, but offers 3D printing and custom machining as a service.

FORBES: Obama Tries But Fails To Ignite Apple And 3D Printing