Thickness: 0.4mm -1.5mm
Width: 650mm, 1000mm, 1220mm -Â 1500mm
Material Standard: SPCC, SPCC/IB,DC01, DC02, ST12 etc.
Surface: SB &Â SD
Inner Diameter: 508mm
Technique: Cold rolled
Shipment Time:Â Â Within 7-30 Workdays
Payment:Â Â L/C, T/T
Trade term: FOB, CFR, CIF
Package: Export package
| Our company unique advantage are: |
| 1.Popular and trustworthy supplier of domestic international trade company |
| 2. Strategic location: Our factory is next to Tianjin Xingang port. |
| 3. Industrial product expertise team. |
| 4. Product reliability, experienced OEM, competitive price, and on-time delivery. |
| 5. On-time feedback and communication. |
| 6. Business belief: Credit First, Be Honesty, Mutual Benefit and Customer Supremacy. |
FAQ
Q: What about your payment term?
A: Usually T/T or L/C, 30% deposit and 70% before delivery.
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Q: What about your standard delivery date ?
A: Within 15-25 days after receiving your deposit.
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Q: How about your capacity?
A: For steel pipes, 400,000 tons per year.  For steel plate, 60,000 tons per year. For steel coil is 750000 tons per year.
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Q: What about your package
A: Usually as customer's requirement.
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Q: If products have some quality problem,how would you deal with?
A: We will responsible for all of our quality problems.
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Q: How to get accurate price /Â quotation from you?
A: Please kindly tell us below details and we'll send our quotation to you ASAP:
1) Pipe's outer diameterÂ
2) Wall thickness   Â
3) Section Shape (round, square etc.)
4) length for each pipe      Â
5) steel grade  Â
6) Standard (e.g.: API 5L)
7) Order quantity  Â
8) Designation port (BK, BKW etc.)Â Â
9) Trade Terms
 In all, the more detailed information, the more exact price we quote.
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Spherical lenses often used for aiming and focusing of monochromatic light source.Plano-Concave Lenses have a negative focal length and is typically used to cause a collimated beam to diverge as in a Galilean type beam expander or Telescope. Because the spherical aberration of thePlano-Concave is negative, it can be used to balance the aberration of other lenses. This lens is widely use in optical display systems, projection optics systems, imaging and laser measureemnt systerms.
We supply kinds of Plano-Convex Spherical Lens,plano-concave Spherical Lens,bi-convex spherical lens,bi-concave spherical lens,Meniscus Spherical Lens,special spherical lens,achromatic spherical lens,ball lens,sphere lens etc.
Specification of our spherical lens as follow:
*Material: BK7,fused silica,MgF2,BaF2,CaF2,ZnSe,ZnS,Ge or other optical crystals
*Dimension Tolerance +0.0 -- -0.1mm
*Center Thickness +/-0.1mm
*Focal Length Tolerance+/-1%
*Surface Quality:60/40
*Surface Figure: lambda/2 at 633nm on plano side
*Clear Aperture >90%
*Chamfer 0.25mm at 45 degree typical
*Coating Optional
Plano-Concave Spherical Lens,Optical Plano-Concave Lens,Double-Concave Lens Kit,Simple Double-Concave Lens Kit
China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com