1. American style, steel body, heavy duty long life time.
2. Main arm and side arm are designed for the heavy door, with hold open and non hold open function.
3. Four valves control with delay and back check function.
4. Power size adjustable from 1-6.
5. ITS (ETL) PT1 certificate, 2million cycles' life span.
Q: What certificate do you have?
A: We have CE, UL, ANSI, UKCA, BHMA and CERTIFIRE certificate, all of our products follow up the international standard.
Q: Do you accept OEM or ODM?
A: Yes, we accept OEM and ODM.
Q: Could you send me samples before place an order?
A: Sure, we can provide samples for quality checking.
Q: How long is the delivery time?
A: 30 days.
Q: How about the payment terms?
A: T/T, L/C and D/P.
Q: How about your quality warranty?
A: We provide 5 years quality guarantee.