Physical Properties:
| Density 20°CKg X m-3(X 103) | 2.2 |
| Coefficient of expansion 25-300°C °C-1(X 10-6) | 0.56 |
| Softening point(°C) | 1710 |
| Annealing point(°C) | 1230 |
| Strain point(°C) | 1140 |
| Youngs modulus(Pa) | 7.5X105 |
Circular shape
Diameter 50mmx (thickness 1mm-30mm )
Diameter 100mmx(thickness 1mm-30mm )
Diameter 150mmx(thickness 1mm-30mm )
Diameter 198mmx(thickness 1mm-30mm )
Other size can be made according to customers' detailed requireents.
why chose us?
1. 16 years experiences on glass manufacturing and exporting.
2. Top quality glass with CE,CCC certificate, exporting to more 80 countries in the world.
3. Unique designed strong wooden cases, solving the problems of breakage.
4. Dockside warehouses beside three of China main container seaports, ensuring convenient loading and rapid delivery.
5. Full range of flat glass supply, offering one-stop purchase.
6. Professional sales team, offering personalized and dedicated services.
Packaging:
1. Inner: 1piece / Bubble paper.
2. Outer: Shipping Carton / According to customers' requirement.
Payment:
1. T/T (Bank Transfer).
2. Western Union.
3. Paypal (For Sample Fee & Courier cost & Small Amount).
4. Sample order: 100% payment before shipment.
Shipment:
1. By Air (China Post Air Mail, ePacket, DHL, UPS, TNT, FEDEX)
2. By Sea (From Qingdao,Shanghai)
3. Terms of Delivery: FOB Qiangdao,Shanghai etc.
4. Both air and sea shippment is available, it's depend on your request.
Deliver Time:
1. Sample order: 3-7 days after receipt of payment.
2. Bulk order: 7-15 days after receipt of payment.
Our Services 
Prompt Reply:
For all your questions about us or your inquiry,we will reply you details within 24 hours.
Sample Products:
We welcome sample order to test and check quality. Mixed samples are acceptable.
Sample Policy:
We can offer samples(the price varies according to the quantity),The total cost (Including postage) is to be paid by the buyers. 100% payment before shipment.
OEM
We accept and welcome OEM orders, you can provide your idea, designs or graphic. We can make it according to your idea.
Low MOQ:
If you choose our current items, you can order start from 10 piece to check the quality first if this item is in stock. This is the best way for you to know us and our products before you order big amount.Company Information
HIGHBORN is one of the leading high quality quartz glass and precise ceramics manufacturer and supplier in China.
HIGHBORN has always been a defining force in the sale and fabrication of quartz glass within the semi-conductor, chemical, solar Energy and precise ceramics within semi-conductor , solar energy, textile, electronic, and laser industries.
Not only have we mastered the fabrication technology, our strength has always been based around listening to and understanding our customer's requirements and expectations.
Continuous improvement in all areas of our business is key to our growth. What is equally important to us is maintaining in business, our inherent family values of trust, faimess and respect to our employees, suppliers and customers.FAQ1. Q: How can I get some samples?
A: If have sample of clear quartz flange stock, we can offer it free. However, you need to afford the freight charge. If it is need to be customized, we will charge you some fees without profit.
2. What about the lead time?
An: Sample quartz rings needs 3-7 days, mass production time needs 7-15 weeks for order quantity more than.
3. How do you ship the goods and how long does it take to arrive?
An: We usually ship Airline and sea shipping also optional.
4.How to ensure quality?
An: Firstly, We products are produced in strict quality control system and the defective rate will be less than 0.2%.
Secondly, if quality problem is confirmed, we will send new product with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.
5. How to proceed an order for quart glass flanfe?
An: Firstly let us know your requirements or application. and then we quote according to your requirements. You can confirm the samples and place the formal order. Then we arrange the production.
