Glad to know that you are on the market of nylon 6 yarn.
This is Roy from Fujian Xinsen Synthetic Fiber Technology Co.,Ltd which is one of biggest nylon yarn supplier in China, including nylon 6 DTY/FDY.
As for our quality, our machines are imported. Texturing machines are from Germany Barmag, Winding machines from Japan TMT. And our PA6 is main from Formosa Chemicals & Fiber Corporation (FCFC). Hope we can be your supplier in the future, thank you so much.