Yuen Long Industrial Estate

Cirtech Technology Internation limited is a world-wide trading company mainly providing PCB materials & PET.<br/><br/>Cirtech is totally committed to providing our ...

49-51 Au Pui Wan St. , 5 / Fl. , Blk 2, Fotan, Hong Kong

Hi Grade (H. K.) Ltd. Is one of the top soldering flux manufacturers in the world. Hi Grade Hong Kong carries out its role as R& D, research and develop new kind of fluxes for electronic assem...