Which brand to choose? STAF or TBI Motion

Hello,

I found this two brand here.

STAF - www.staf.com.tw
TBI Motion - TBI MOTION TECHNOLOGY CO., LTD Ball Screw/Spline/Linear Guide

STAF cost +20% over TBI. Hiwin is too much expensive.

Do you know this brands?

The vendor of TBI told me that Staf and Hiwin are Taiwan, and all have the same quality. I will buy TBI, and can reply about here soon if anyone want to.

I've used TBI ball nuts a few times - very good. However quite often the Chinese vendors use chinese ballscrew shaft with imported ballnuts. If they advertise as selling TBI ballscrews, its probably just the ballnuts only.

Not much of an issue as the machines & dies used to roll ballscrews (for C7 grade) are often imported, so they're of good quality.