当生产led灯源所必要的原材料，需求不断增大，扩展到供应链时，这些公司的优势就会显现出来。

And they may have an advantage when growing demand for essential raw materials stretches supply chains.

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检查安全链，确认所有的警示灯是正确连接好了。

Check safety chain hookup. Make sure all warning lights are hooked up and functioning correctly.

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检查安全链，确认所有的警示灯是正确连接好了。

Check safety chain hookup. Make sure all warning lights are hooked up and functioning correctly.

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