How to choose a good traffic light manufacturer? Small make up to you, basically have the following: 1. To manufacturers actual inspection, the manufacturer must know the size of 2. Products of better quality, and reasonable price to 3. After-sales service is better, can sign a formal service contract article
how to choose a good traffic light manufacturer? I'd like to introduce you to the following: 1. Before the actual inspection in the factory, must know the size of the factory. Better product quality, reasonable price. 3. Good after-sales service, to Mr Zhang source: sign a formal service contract. yhjtqc。 How much money com ocean street lamp