| Color | Natural colour of stainless steel |
| Feature | About two meters without welds |
| Function | Material conveying accessories |
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| Material: | low-carbon steel, manganese steel, stainless steel | |||||||
| Processing Craft | Continued cold rolling, Continued twisting, Stamping and estending | |||||||
| Inner Dia. | ≥8MM | |||||||
| Outer Dia. | ≤900MM | |||||||
| Thickness | 16MM~40MM | |||||||
| Colour | Red, Green, Black, Self-colour or as requested | |||||||
| Date of delivery | 0~50 meters with in a week. | |||||||
| NO. | Diameter | Bottom diameter | Leaf height | Pitch | Length | Thickness | Density | Weight |
| Â | D | d | c | S | mm | mm | Â | kg/m |
| 1 | 200 | 80 | 60 | 200 | 1000 | 16 | 7.85 | 18.48 |
| 2 | 220 | 80 | 70 | 220 | 1000 | 20 | 7.85 | 26.46 |
| 3 | 220 | 100 | 60 | 220 | 1000 | 16 | 7.85 | 18.99 |
| 4 | 220 | 100 | 60 | 220 | 1000 | 18 | 7.85 | 21.37 |
| 5 | 220 | 100 | 60 | 220 | 1000 | 20 | 7.85 | 23.74 |
| 6 | 260 | 100 | 80 | 260 | 1000 | 20 | 7.85 | 30.56 |
| 7 | 260 | 120 | 70 | 260 | 1000 | 16 | 7.85 | 22.24 |
| 8 | 260 | 120 | 70 | 260 | 1000 | 18 | 7.85 | 25.02 |
| 9 | 260 | 120 | 70 | 260 | 1000 | 20 | 7.85 | 27.8 |
| 10 | 280 | 120 | 80 | 280 | 1000 | 20 | 7.85 | 31.24 |
| 11 | 280 | 140 | 70 | 280 | 1000 | 18 | 7.85 | 25.52 |
| 12 | 300 | 140 | 80 | 300 | 1000 | 18 | 7.85 | 28.67 |
| 13 | 300 | 140 | 80 | 300 | 1000 | 20 | 7.85 | 31.85 |
| 14 | 320 | 160 | 80 | 320 | 1000 | 20 | 7.85 | 43.22 |
| 15 | 320 | 160 | 80 | 320 | 1000 | 22 | 7.85 | 37.64 |
| 16 | 380 | 220 | 80 | 380 | 1000 | 25 | 7.85 | 42.88 |
| 17 | 380 | 120 | 130 | 380 | 1000 | 25/20 | 7.85 | 54.14 |
| 18 | 460 | 300 | 80 | 460 | 1000 | 25 | 7.85 | 43.78 |
| 19 | 460 | 180 | 140 | 460 | 1000 | 20/25 | 7.85 | 60.13 |
| 20 | 560 | 400 | 80 | 560 | 1000 | 30 | 7.85 | 57.82 |
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1. How long can the longest weldless blade be formed at one time?
  Usually it is about two meters. The raw material is the length of standard steel sheet, and the final length is formed according to the size of outer diameter, inner diameter and pitch of blade.
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2. How much material thickness can be achieved?
   We can reach the international leading level and the thickness can reach 16-40 mm.
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3. What are the feature of our products?
  The most advanced technological level in the world;
  Double-layer winding can be realized;
  Spiral material selection Q345B, SUS304 or SUS316, raw materials are guaranteed;
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4. What are our service advantages?
   Material is guaranteed and material certificate can be provided;
  Product quality is stable and reliable;
  High cost performance ratio;
  It can provide a series of technical services for type selection, design, manufacture, installation and operation;
  Long-term, reliable and high-quality partners.
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5. How to pack and transport?
   For export transportation, we can pack goods with solid steel brackets or export fumigation-free wooden boxes;
  Suitable for Standard Container Transportation;
  Special Customization Suitable for Air Transportation and Express Transportation;
  We accept OEM
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6. How long does the delivery time take?
    currently, the delivery time is about 15 days, excluding transportation.
  Communication is needed in large .
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