We have already purchase order to some manufacturer (real & claimed manufacturer)
We want to share our experience
recommended manufacturer:
SANAN -cooperative & good quality
LONGSE -cooperative & good service
unrecommended manufacturer:
-SECRT-expensive price than others, but in low quality, defect ratio more than 5%-worst & more expensive than LONGSE-progress time 1-2month-very bad in service.
-Xenon-very bad in service.
Thanks