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1 ) offer Buyer a designated Bank Account for making payment,Once e-Contract is confirmed Buyer and supplier, Comb2b.com will:
1 ) Recommend the below Digital Currency Exchange for buyers to convert local currency to USDT / USDC.HD-4000 Middle Duty Grade 1 Cast Aluminum Commercial Door Closer Chinese Door Closer Factory
| Technical Parameters |
Model | HD-4000 |
| Applicable Standard | UL & ANSI/BHMA 156.4 Grade 1 |
| Max Door With | ≤1250mm |
| Max Door Weight | 20~150kg |
| Hold-Open | optional |
| Back check | yes |
| Delay | NO |
| Latching Speed Adjustment | 0-20° |
| Closing Speed Adjustment | 20°-180° |
| Application Temperature | -40°-60° |
| Dimension:Length*Width*Height | 246mm*44mm*70mm |
| Dimension of Appearance |
| Product Features |
A. Traditional style medium & heavy duty doser for commercial doors;
B. ANSI/BHMA A156.4 Grade 1 Certificated
C. UL10C listed for positive pressure fire test
D. Adjustabie spring force from EN2-5
E. Standard, separate and independent, latch, sweep and backcheck intensity valves
| Special Function |
| Product Details |
| About us |
| Why choose us |
1. The world's biggest floor spring manufacturer in China.Daily productionover 15,000PCS
2. The factory has three production base located in ZHEJIANG ,ANHUI,JIANGSU three province. The area cover 72,000 square meters.
3. Over 33 years producing experience. Ripe production process.
4. Impeccable testing system covered from raw material,components,semi-finished products.
5. HAIDA has own national test laboratory (Intertek Satellite Lab)to make sure the growth of our company.
| More Products |
| Workshop & Lab |
| Producton Process |
| Certification |
| FAQ |
Q: What is the minimum quantity ?
No MOQ,We can sell even 1PCS
Q: How long is the delivery time?
10 to 30days,depend on your order quantity
Q: Can you send samples before place the order
Yes,sure.we can provide samples for quality checking.
Q: Do you provide OEM service?
Yes,we do
Q: How about the payment terms ?
T/T,D/P,L/C,Paypal,Western union and cash all acceptable.
Q: How about your quality warranty?
When the products got problem during our warranty period,we will provide
| Packing & Shipping |
| Contact us |
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