Material: BAMBOO
Product Type: Storage Bamboo Baskets
Regional Feature: Eco-friendly, light weight, easy to use and care
Place of Origin: Vietnam
Product name: Bamboo Basket
Use: Storage for home decor
SEAGRASS ROPE/ RAW SEAGRASS
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Color: Natural color
Place of Origin: Vietnam
Style: Dried.
Usage: Main material for handicraft industry
Size: 2,5-2,8mm, 3mm, 3,2-3,5mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm
Packing: Bag or Customer required.
Payment: L/C, T/T, negotiable
Coir rope is a product made from coconut fiber, which is organic and environmentally friendly. Using coir rope in decoration, agriculture ... will contribute to making our living environment cleaner and more environmentally friendly. Main usage Wrap the coir rope around the stem to keep the plant warm, not to make the sap affected in cold weather. Use coir rope suitable for vines
Coir rope 30mm Coir Yarn 30mm, long 65m, 80m.
Coir rope is a product made from coconut fiber, which is organic and environmentally friendly. Using coir rope in decoration, agriculture ... will contribute to making our living environment cleaner and more environmentally friendly. Main usage Wrap the coir rope around the stem to keep the plant warm, not to make the sap affected in cold weather. Use coir rope suitable for vines
Water hyacinth is naturally dried. Absolutely do not use any chemicals on the product. The product is completely handcrafted Natural color. Products from nature, can decompose in the soil, do not pollute the environment. Always have large quantities available. Products can be used to decorate your home, create your own style
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Eco-Friendly, Natural Coir Rope Made From 100% Coconut Fiber Vietnam
Place of Origin: Vietnam
Color: Natural brown
Style: Twisted/Curled
Diameter: 4-6mm, 8-10 mm, 12-14mm, 16--18mm, 20-22mm
Packing: Rolls, Bunch or according to client's requirements
Price: Negotiated
Payment: LC, TT,..
Specifications:
Origin: Vietnam
Color: Natural.
Moisture: 8% max.
Diameter: 1 - 22 mm.
Length: 100m, 200m.
Made from medium to long fiber.
100% natural, well-cut, smooth surface.
Quantity capacity: 5*40ft container/ month.
Packaging: each roll is wrapped by straps
- Wrap the trunk to keep the heat to a tree, the sap does not suffer when the weather is cold.
- Use appropriate for the variety of vines. Reliability over 06 months. After the user can apply to the root cause to soil moisture.
- Use on decorative items online art high efficiency.
Seagrass is natural eco - friendly biodegrade material from Vietnam. It's can be used to make various handicrafts like seagrass mat, seagrass basket, seagrass rug,...
Origin: Vietnam
Length: 1.6m - 1.8m
Type: Dried seagrass material
Color: Natural
Size: 2,5-2,8mm, 3mm, 3,2-3,5mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm
Usage: Basket, furniture, handicraft
Packing: 30 kgs/bundles or as customer's requirement
Water hyacinth is naturally dried. Absolutely do not use any chemicals on the product. The product is completely handcrafted Natural color.
Products from nature, can decompose in the soil, do not pollute the environment. Always have large quantities available.
Products can be used to decorate your home, create your own style.
Fabry Parot Etalon is a high-resolution interference spectrometer with wide applications, which include high-resolution spectroscopy, the study of spectral lines with very close wavelengths, such as the isotope spectrum of elements, the hyperfine structure of the spectrum, the small frequency shift in light scattering, the Doppler shift of spectral lines caused by atomic movement, and the internal structure shape of spectral lines.
It can also serve as a high demanding optical filter and a precision wavelength meter. In the laser system, it is often used to narrow the spectral line in the cavity or make the laser system operate in a single mode. It can be used as a bandwidth control and tuning device in broadband picosecond lasers to detect and analyze the spectral components in the laser (longitudinal mode, transverse mode).
Use of etalon and selection of substrate materials
Etalons, when used in transmission mode, have a series of transmittance peaks with periodic frequency spacing and are typically used in telecom for wavelength locking. Etalons are characterized by their Free Spectral Range (FSR) the frequency spacing between peaks and their Finesse which essentially governs the shape of the transmission peaks.
Etalon filters typically consist of a single spacer layer with two reflector stacks on either side.
For FSR values below 1000 GHz, the spacer is usually fabricated from a substrate material (rather than grown in thin film deposition). To achieve etalon quality polishing the parallelism of the substrate needs to be better than 1-5 arc-seconds.
Different substrate materials are chosen depending on the application fused silica is used when the etalon FSR and peak variation with temperature is to be minimized while Si is used when a high FSR temperature coefficient is required for thermal tuning.
Photonchina fabricates custom high quality fused silica and Si etalons at competitive prices with FSR values in the range of 12.5 GHz to 500 GHz.
Types of Etalon
The optical etalon can be a single-piece structure with parallel reflective surfaces, the solid-state etalon made of fused silica material, or an air-gap structure using a Fabry-Perot cavity double-reflective mirror, i.e., the air-gap etalon.
1. Solid Etalon:
Photonchina Specifications:
Material: H-K9L/BK7, Quartz Glass
GUIDE BUSH OUTER
Material: 45#
Weight: 0.58kg
Manufacture process: Machining
Description: Mold parts, and guide pillar, play the role of a guide, generally fit clearance is small, within 0.05 mm;In general use in the mold or some mechanical, to ensure the accuracy of the movement.
roll shaft bearing
Material:ZG30Mn
Weight:3-10t
Process:sand casting
Description: the main parts of coal grinding machine
Function: Roller shaft bearing is the main accessories of grinding machine, connection roller cover and the bearing seat, and easy to open the shaft bearing and maintain it after open the roller cover
