3H Inc., a professional aluminum and UPVC windows and door accessories company was established in 1981, with more than 30 years’ experience in window and door hardware field now. Our products range includes window and door locks, hinge, handles, friction stays, gears, corner joints, flush bolts, rollers, rubber gasket, weather strips and so on. Our factory covers around 300,000 square meters with more than 1450 employees in Foshan City, Guangdong province in China, only 50 minutes’ drive far awa...