You are here: Home » About US » Warranty
Quality is not a subjective matter, but Objectively Measurable

Our products are independently tested and certified according to the European Standards &  American Standards.

Certified Quality= Durability = 5 Year Mechanical Guarantee


Door Hinge(ANSI Grade1 ): 2,500,000 Tested Cycles

Door Hinge(ANSI Grade2 ): 1,500,000 Tested Cycles


Mortise Lock(ANSI Grade1): 1,000,000 Tested Cycles

Mortise Lock(EN12209): 200,000 Tested Cycles


Door Hinge(EN1935 ): 200,000 Tested Cycles

Lever Handle(EN1906): 200,000 Tested Cycles

Door Closer(EN1154): 500,000 Tested Cycles

Panic Exit Device(EN1125): 200,000 Tested Cycles

Contact Info

:+86-139 2903 7292   David Jian

: +86-750- 3856396


:  No.4 Bldg, Street 33, West Gaoxin Rd, High-tech Zone, Jianghai Dist. Jiangmen City, Guangdong, China 

Product Inquiry

©Copyright D&D HARDWARE INDUSTRIAL Co., Ltd. All Rights Reserved.