How to find a good coil cable supplier?

At first, and most importantly, a good coil cable supplier must be a coil cable maker. By that, you get the straight and efficient communication with coil cable factory staff.

Secondly, make sure the supplier manufactures both straight cable and spiral coiling by themselves. Since spiral coiling is time-consuming work, many factories have it finished by third party company. That is no good business mode. The cable products may be easily contaminated. Most importantly, the coil cable quality is hard to be controlled.