• invisible hinges secret door hinges
• FOB Shenzhen port(If you would like other kind of payment terms, please feel free to contact with us and discuss the trade terms.)
• payment terms: T/T or Western Union (40% deposit, 60% balance before shipment)
• Min. order quantity: 500 pcs
• supply capacity: 10,000 pcs
• delivery time: 15-30 days
• package: every piece is packed into a poly-bag and then two pieces are packed in a box, ten boxes are packed in a carton.
• poly-bag's size: 30.2*11*0.008cm;
• box's size: 21*12.5*4.5cm
• carton's size: 27*23*27cm
• fittings: an inner hexagon spanner and 16 stainless steel screws per box.
• prompt delivery once both sides agreed
• good service and high quality control provided
• Small orders are acceptable and customers' designs and logos are welcome.
• The quoted price is always valid for 10 or 15 days due to the fluctuation of raw material cost.
• Please feel free to contact us for the catalogues or prices.
• Please kindly inform us which items you are interested & the best price will be provided you upon receipt of your new inquiry asap.

Usage and Installation

invisible hinges secret door hinges

suitable for security door, entrance door, antitheft door, anti-fire door, wooden door and interior door

Suitable max. door size is W1000*H2700mm

wear resistant discs without lubrication oil

rotate flexibly and test for over 200,000 cycles without abrasion

disregard the left installation and right installation

Installation method: the narrower side is installed on the door and the wider side is installed on the door frame. then the two machine-processed rice screws on the door side are to adjust the left-and-right direction. while the inner two cap head screws on the frame side are to adjust the up-and-down direction and the outer two cup head screws on the frame side are to adjust the front-and-back direction, that is also can be understood as the flatness degree.

Our after-sale service

invisible hinges secret door hinges

If the items you received had some problems, please feel free to contact with our After-sales service department in time within 30 days after you received the cargo and we will get down to it carefully and satisfactorily.

Tel:  86 769 8551 9582 ext: 8012 

Time: 9:00 a.m.-6:00 p.m. (Beijing time)

Shengang, as a professional manufacturer and supplier, is specialized in developing, producing and marketing door and window hardware all over the world. With high quality, best service, reasonable price, we enjoy a good reputation in America, Europe and Asia. Please kindly contact with us freely. High quality, reasonable price and best service will be offered to you.

 

1. Year established : 2000

2. Factory area: 3500  m3

3. Number of people: 60

 

Enterprise spirit:
Create a world brand with making high quality;
Create brillant with hard working & acting integrity;
Win for all world with unique innoration

 

1. European Simplicity style. 
2. We can design & produce as per your samples and requirements. 
3. We have the ability to deliver orders promptly in a high quality 
4. We own their hot-forging,maching,polishing,plating and assembling in our factory.

 

1. Could i get some samples for reference before ordering?

 

Yes, we could send you samples firstly, the samples are free. But the freight cost will be paid by your side.

 

2. What payment terms you accept?

 

Normally, T/T, Western Union will be available. But it all depends. We will discuss with you when ordering. 

 

3. What kind of shipment you will choose when products finished?

 

TNT, UPS, FedEx, DHL, SF express, EMS, by sea, we will ship to you as per what way you like.