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Welcome to Kingstar Hardware
————one of the white hair in door accessories business in China since 1990,one of the professional manufactures.
Warmly congratulations Kingstar to get the KS certificate on 30th,Sep,2015!
————This is the best guarantee for the quality of our products.

Wholesale heavy duty hydraulic single cylinder glass door hardware
| Model Number | KFS-28 |
| MAX DOOR WEIGHT(KG) | 100 |
| MAX DOOR WIDTH(MM) | 1000 |
| MAX OPEN ANGLE | 125° |
| HOLD OPEN | 90° |
| CLOSING SPEED ADJUSTMENT | 90°~15°/15°~0° |
| APPLICABLE TEMPERATURE | -40°~40° |
| DIMENSION OD CEMENT BOX(MM) | 285*135*100 |
| QUALITY WARRANTY | 500,000 times |
| FUCTION | Two-sided switch,inward or outward opening(or closing)the door |





1. Draw lines and make floor spring pivot center and door-nip pivot coincide with each other.
2. Drill holes on the floor according to the instructions. The sizes of the holes must tightly match the floor spring.
3. Place the floor spring into the holes and position it.
4. Raise the door leaf installed with door-nip, and insert the floor spring pivot into the hole of the door leaf.
5. Adjust the screws at three directions. Make them vertical and the upper and lower pivot center coincide with each other.
6. Adjust the speed of door closing.
7. Put the decoration cover on the floor spring.
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Kingstar Hardware,one of the white hair in door acessories business in China.Our value message is "Quality comes the first."
We have many production equipments and excellent technicians to ensure high quality of our products.
We are professional in producing door acessories since 1990 and we have got some certifications such as KS certification(Korea Standard).
Welcome purchasers from all over the world to come and visit!


A: Yes we are! We are manufacturer .We produce floor spring(hinges),door closers,door patch fittings,glass door locks and so on with Our factory in our own building .
A: Yes we do! Firstly,we have many professional equipments and excellent technicaians.Sendly,we have got KS certificate--Korea Standard certification--As you know , how rigorous Korean .
A: Yes we do! we offer OEM good quality and price.
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
We have many items in promotion!
Please feel free to contact us!
New products from manufacturers at wholesale prices