Almost all customers will ask me a question, how long is your product warranty period?
Another way of saying this question is: How is the quality of your product? How many years can it be used? If they are bad, I may lose business credibility with my clients.
The real answer is that our products including mortise lock and hinges, have a service life of more than ten years. Product quality assurance comes from two aspects.
The first is GOOD RAW MATERIALS.
For the mortise lock, we use SS304 to make latch bolt, dead bolt, striking plate and forend. The material of the lock shell is galvanized steel plate, and with anti-fingerprint layer. We did not choose SS201 or iron, SS 304 has better corrosion resistance. The picture below is the steel quality inspection report.
The lever handle is also made of SS304.
For the concealed hinge.we use high quality zinc alloy for casting, some models with a load capacity of more than 100kg use stainless steel die casting. Then all the accessories will be electroplated as a whole and then assembled. Electroplating is a more aesthetically pleasing and substrate-protecting surface treatment process that costs more than coating.
Followed by our advanced manufacturing process.
Our two factories are located in Hebei and Guangdong. The lock body production line includes processes such as stamping, polishing and assembly. Hidden hinge production line includes die casting, polishing, assembly and other processes.
Another reason is careful quality inspection.
Each part of the mortise lock will undergo the first quality inspection when stamping is completed, and the second quality inspection after assembly. Then part of the product will be selected from each batch for quality inspection.
The concealed hinge will undergo 3 quality inspections. Die-cast parts will go through the first quality inspection after grinding. After the electroplating is completed, a second quality inspection will be carried out before assembly. After the assembly is completed, the third quality inspection will be carried out before packing.
After multiple quality inspection procedures, almost all substandard products will be found and rejected. This guarantees the quality and consistency of our products.
