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Frequently Asked Questions
What certificates do your door closers have?
We have CE and UL certificates. All our product designs follow international standards such as EN/CE, UL, and ANSI.
Do you accept OEM or ODM orders?
Yes, we are professional in OEM and ODM services, currently cooperating with famous global brands.
How do you ensure product quality?
We have a comprehensive quality system that controls every procedure throughout mass production according to strict requirements.
What is the guarantee on your products?
We provide a 5-Year Mechanical Guarantee for our door closer products.
What grades of stainless steel do you use?
We primarily work with SUS304 and SUS316, though some items are available in SUS201.
Can I request samples before placing a bulk order?
Yes, we can offer up to 3 free samples for your evaluation. You would only need to provide a courier account for freight collection.