Welcome to Henan Chalcos PCB aluminum entry sheet website!
Aluminium Drill Entry Sheet ManufacturerProfessionalism, integrity, mutual benefit and win-win
Inquiry:business@chalcoaluminum.com
Email:business@chalcoaluminum.com
Mobile:86 17344894490
Address:No.89 Science Avenue,National HI-Tech Industry Development Zone,Zhengzhou,Henan
drill backup board Have a certain surface hardness (reach to 80+-2 shore)to ensure. that the machine drills bit removal chip to keep the drill holes wall clear and reduce the drilling burr. but not too hard and wear the drill bit to protect the pcb drille....
Melamine Backup Board Wholesale -Henan Chalco. Henan Chalco Is specializing in the production of the. printed circuit board (PCB) accessories. We provide PCB drilling backup board . To be a good supplier with white melamine backup board products. and the....
Aluminium pre-entry board for CNC drilling printed circuit board is placed on the top of the stack before drilling. Being aluminium it acts as a heat sink and its soft structure provides a good stable entry point for the rotating drill bit. Aluminium entr....
