To ensure that the material composition meets the ASTM standard, D&D uses a spectrometer to check the stainless steel raw materials before production.
In each step of mass production, D&D arranges a quality control department to ensure that each production department fulfills its responsibility of producing high-quality products.
D&D test products are often performed on the testing machine to ensure that the products comply with ANSI/UL standards..
D&D uses measuring tools to inspect the products during each process of mass production to ensure that the product size meets customer requirements.
In order to ensure consistent quality, during the entire mass production process, D&D will check and control each process well.
D&D uses the salt spray test machine to test the product to ensure that it meets the specific corrosion resistance requirements.
D&D factory is equipped with advanced door hardware testing equipment to ensure strength, durability and compliance with international standards.
D&D test products are often performed on the testing machine to ensure that the products comply with CE/UL/ANSI standards.
Mortise Lock Durability Test Machine ·Tested to EN12209 Grade 3 standard ·Latch bolt for over 200,000 test cycles
·Dead bolt for over 50,000 test cycles ·Track of quality of mass production
Door Handle Strength and cycle Test Machine
· Lever handle test for over 300,000 cycles · Test to BS EN 1906 Grade 4 Standard · Track of quality of mass production
Cylinder Lock Durability Test Machine · Tested to EN 1303 standard · Test for over 100,000 life cycles · Track of quality of mass production
Door Closer Durability Test Machine
· CE Standard Door Closer, Tested to EN 1154 standard, for over 500,000 cycles · Tested to ANSI/BHMA 156.4 Grade 1, for over 2,000,000 cycles
· Track of quality of mass production
Door Closer Durability Test Machine · CE Standard Door Closer, Tested to EN 1154 standard, for over 500,000 cycles · Tested to ANSI/BHMA 156.4 Grade 1, for over 2,000,000 cycles · Track of quality of mass production
Door Hinge Durability Test Machine
· CE Standard Hinge, Tested to EN 1935 standard, for over 200,000 cycles · ANSI Heavy Duty Hinge, Tested to ANS/BHMA A 156.1 Grade 1, for over 2,500,000 cycles · ANSI Standard Duty Hinge, Tested to ANS/BHMA A 156.1 Grade 2, for over 1,500,000 cycles · Track of quality of mass production
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Get Famous Branded Quality at Factory Cost 12th Floor, Building 2, No.898, KeChuang Technical Zone,Jianghai Dist.Jiangmen City,Guangdong,China