HPK is a professional manufacturer of automatic door and access system in Macau. We have over 40 years history in engineering and automatic access system, e.g. automatic sliding door and gate, roller shutters, parking system, and garage door. The reputation and job references are the best guarantee to our clients. Our technicians welcome your technical inquiry in installation and customization of auto-door. Because we are not selling you our stocks, we make the door for you.