OHSAS18001：2007 Occupational Health and Safety Management System Certificate
ISO14001：2015 Environment Management System Certificate
CNAS Laboratory Accreditation Certificate
ISO9001：2015 Quality Management System Certificate
CE of sliding lock
CE of roller
CE of door lock set
CE of flush bolt
CE of friction stay
CE of handle
CE of hinge
ABOUT US
3H INC is one of the few company provide professional design and solutions for customer in window and door system field. We provide one-stop solution for window and door accessories...