Kuraray was the first commercial PVA factory in the world in 1950, and has been playing a leading role in the world's PVA industry. Now also known as the world's first PVA production, it is manufactured by large-scale continuous devices relying on automation. In addition, Kuraray's PVA manufacturing device has been certified by ISO9002 in 1994. Under such reliable production management, we supply products with high purity, high whiteness and transparency, and stable quality that are easy to dissolve. In addition, in addition to general brands, there are also a wide variety of special brands and modified PVA. With such superior characteristics, Kuraray PVA is used for various purposes not only in Japan but also in the world.
PVA Resin series products are white solids, with three shapes: flocculent, granular and powdery; It is non-toxic, tasteless and pollution-free, and can be dissolved in water at 80-90 ℃. Its aqueous solution has good adhesiveness and film-forming property; Capable of resisting most organic solvents such as oils, lubricants and hydrocarbons; It has the chemical properties of esterification, etherification and acetalization of long-chain polyols.
Properties: It is a water-soluble polymer, odorless, non-toxic and harmless, with a white powder solid appearance. Soft and fluffy feel, and the fiber shape is even and moderate. It has unique characteristics such as strong adhesion, smoothness, oil resistance, solubility, gas resistance, insulation, abrasion resistance, protective colloid, etc. It can also be made water resistant by special treatment. Its aqueous solution has good film-forming property, emulsification stability, high transparency, strong adhesion, and good moisture resistance. Its solubility becomes better with the decrease of alcoholysis degree, and the protective colloid property and viscosity decrease with the decrease of polymerization degree. It has typical chemical properties of polyols and can be used for esterification, etherification, acetalization and other reactions.
Kuraray Polyvinyl Alcohol Resin, Kuraray Poval PVOH, Kuraray PVA Resin Henan Chuange Industry CO.,LTD , https://www.chuangegroup.com
MODEL
B20
B30
B40
Length
215mm
Image
Erect
Objective Aperture
42mm
36mm
32mm
Magnification
32X
28X
24X
Field of View
1°20'
1°25'
Resolving Power
3.0"
3.5"
4.0"
Minimum Focus
0.3m
Stadia Ratio
1:100
Additive Constant
0
Diameter
103mm
Graduation
1° or 1 gon
Working Range
±15'
Accuracy
0.3"/1'
0.5"/1'
Without Micrometer
0.7mm
1.5mm
2.0mm
With Micrometer
0.5mm
/
Water Resistance
IP66
Working Temperature
 -20ºC ~ 50ºC
Storage Temperature
 -40ºC ~ 70ºC
Weight
21.5×13×14 (cm)
Size
1.85KGs
1.7KGs
Features:
★ Enhanced Automatic Magnetic-Damping Compensator, free from vibration
★ Ultra clear lens for long range observation
★ Infinity Adjustable Focus Screw
★ Excellent shock test performance
★ Top dustproof and waterproof capability Ip66
Â
Standard Configuration:
Company Profile
Â
About Us
      Geodex was established in 2012 by a small group engineers who have more than 10 years working experience in the surveying industry. It sells advanced high precision Geographic Surveying & Mapping equipment such as Satellites Navigation Surveying System, Total Station, theodolites, automatic levels and laser level and so on.
      These kinds of products are widely used for high precision measurement, surveying & mapping works, such as land & housing management, building, road, railway & city infrastructure construction, Topographic, Cadastral, monitoring and mining, hydro & marine surveying projects.
      Geodex's office & factories are based in China. Its head office is located in Guangzhou, and main factories are located in Guangzhou & Beijing.Â
      Geodex's main customers are geographic surveying information departments and construction companies, its products are also sold to Colleague & University for teaching uses.
      Geodex sells products to many different countries. It has a high market reputation because it not only provides high quality products, but also excellent customer & technical supports.
Mission Statement
      Make A Difference by Delivering Surveying Equipment to All Over the World, Our mission is to help our clients to be more competitive and achieve more business success.
Â
Packaging &Â Shipping
      Geodex has excellent performance in providing Oversea Transportation Solutions. Goods would be arranged to send by Express Courier door-to-door delivery service like DHL, Fedex, UPS, TNT and so on or General Air Cargo Service from airport to airport, shipment by ocean (boat), by truck via land transport or special line service forwarder agent appointed by buyers.
About Technical Supports
1) We provide not only high cost-efficiency surveying instruments.
2) but also professional surveying solutions and strong technical supports including maintenance &Â parts service.
3) Make sure Quality Verified &Â recalibrated before each shipment.
4) Fast Delivery, stocked in Guangzhou.
5) Professional Export &Â Import Service.
6) One-year warranty period of surveying equipments.
 Â
Contact
Guangzhou Geoland Instrument Co., Ltd. Â
Add:Â Â 410, No. 7Â Minxing Street, Huangpu District, Guangzhou, 510530, Guangdong, China
TEL: +86 (0)20-8251 6799Â Â Â Â Â FAX: +86 (0)20-8251 6499
Website:Â http://www.geoland.cnÂ
--------------------------------------------------------------------------------------------------------------------------
Â
High Accuracy Auto Level 24X B40 Level Optical Surveying Equipment
Model NO.: B40
Minimum Focus: 0.3m
Resolving Power: 4.0"
Diameter: 103mm
Working Range: ±15′
Field of View: 1°25′
Without Micrometer: 2.0mm
Water Resistance: IP66
Trademark: GEODEX
Transport Package: Plastic Carrying Case
Specification: 21.5*13*14 (cm); 1.7KGs
Origin: China
HS Code: 9015800090
Technical Specifications: