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Brand Name : Sudi
Model Number : 6.4-44CM
Certification : ROHS , SGS , CPST
Place of Origin : China
MOQ : 500pcs
Price : Negotiable
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram
Delivery Time : 15-30 days
Packaging Details : Export carton
Product Desc. : Double spiral binding coil
Color : Various golden customization
Material : Nylon Coated Steel
Product Size : 1/4"-1-3/4"
Pitch : 2:1 3:1
Shippin Method : By sea or by air
Lead Time : Depends on the quantity
Nylon Coated Steel 3/8"-1/2" Wire-O Binding For Notebook Calendars
 
  Company Profile.pdf
 
 
Wire-O Binding
Also termed as double wire binding or twin loop binding, wire-O binding uses double metal wire to bound all the collected interior pages. In this binding, there is a square hole drilled, with many wire color choices for the clients like black, white, silver, etc. This is one of the best methods that you can choose when you want your documents to open all the way to back or lie flat on your desk. This will save a lot of space on your desk as well.
The wire size will depend on the thickness of the book, whereas the margin on the spine edge must be around 5mm. The margin on the spine edge must be larger than the margin on the cutting edge. So, for instance, if the margin on the cutting edge is 5mm, the margin on the cutting edge must be at least 15mm. So, after binding, the texts are in the center of the page.
In this mechanical form of binding, the wire used is made of metal. The unbreakable binding that is formed here is formed by two loops of wires. This binding option can give you a very uncluttered look because the hinges are hidden inside the back cover. Another reason why people choose this type of binding is because of its sturdy and stable nature. Whether you are designing a custom notebook or a journal, this type of binding is what you should opt for in such cases. They serve as the perfect binding option in gifting scenarios.
 
 
Applications:
 
Widely use for stationery items. such as reports,books,surveys,sales presentations, reference materials, training manuals, cookbooks,calendars, notebooks,proposals,summaries etc.
 
 
|  | Product Details | |
| Name: | Metal Spiral Binding Coil Wire O | |
| Materical: | Nylon covered wire | |
| Color: | Any colors is available | |
| Tooth pitch: | 2:1 3:1 | |
| Size: | 6.4-44mm | |
| Wire Dia: | 0.75-1.5mm | |
| Length: | A4,A3,A5,B5,A6,A7 etc ; OEM length viable | |
| Key Word: | Metal double helical coil, | |
| Packing Details: | 100pcs/box, 20boxes/carton. | |
| Product Size (mm) | Pitch | Binding Thickness (mm) | Recommended Max Number of sheet (80g) | 
| 1/4” (6.4mm) | 3:1 | 4.8 | 45 | 
| 5/16” (7.9mm) | 6.4 | 60 | |
| 3/8” (9.5mm) | 7.9 | 75 | |
| 7/16” (11.1mm) | 9.5 | 85 | |
| 1/2” (12.7mm) | 11.1 | 100 | |
| 9/16” (14.3mm) | 12.7 | 120 | |
| 5/8” (15.9mm) | 14.3 | 135 | |
| 5/8” (15.9mm) | 2:1 | 14.3 | 135 | 
| 3/4” (19.1mm) | 17.5 | 165 | |
| 7/8” (22.2mm) | 20.6 | 180 | |
| 1” (25.4mm) | 23.8 | 200 | |
| 1-1/8” (28.6mm) | 26.5 | 220 | |
| 1-1/4” (31.8mm) | 30 | 240 | |
| 1-3/8” (34.9mm) | 33.5 | 260 | |
| 1-1/2” (38.1mm) | 36 | 280 | |
| 1-5/8”(41.27mm) | 2:1 | 38 | 320 | 
| 1-3/4”(44.45mm) | 2:1 | 41 | 340 | 
 
 
 
Introduction to Spacing and Thickness:
 
 
Advantage :
 
Ø Large production capacity and fast delivery.
Ø Strict QC inspection before shipment.
Ø Provide OEM/ODM services and have a domestic first-class technical team.
Ø Provide real-time quotation for your inquiry.
Ø 40 years of original production experience.
Ø Professional spring manufacturers provide competitive prices.
Ø Passed ISO9001.2008, SO14000, ISO18000, ISO/TS16949-2009 and SGS certification.
 
 
Product details:
 
 
 
Dear, I am honored that you can come to my website. We are a manufacturer, no middlemen are involved,
the price is very favorable, and the quality is guaranteed. If you are interested in our products, please contact us.
Customize the products you are satisfied with. luo@sudidg.com WhatsAPP+86-17722306989
 
 
 
  Environmental certificate:
 

     
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