| Principle: | Molded |
|---|---|
| Range: | 0-3m |
| Measurement Accuracy: | ±3mm |
|
Still deciding? Get samples of US$ 20/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Our oblong sight glass lenses are available in virtually any material, thickness and configuration.
Available glass material includes borosilicate, soda lime, quartz, tempered Pyrex and so on.
| TESTING ITEM | STANDARD RULES | TEST RESULT |
| Coefficient of expansion | 3.3±0.1)*10-6/K | 3.35 *10-6/K |
| Annealing point °C | 560 ± 10 | 562 |
| Density r | 2.23 g · cm-3 ±0.1 g · cm-3 | 2.24 g · cm-3 |
| Softening point °C | 825 ± 10 | 829 |
| Working point °C | 1260 ±10 | 1255 |
| Maximum short-time working temperature °C | 500 ± 10 | 510 |
| Transmittance | ≥96%/2mm | 97%/2mm |
| Hydraulic power | -10ºC,16kg/cm2 | -10ºC,16kg/cm2 |
| bending strength | > = 160N/mm2 | 170N/mm2 |
| tolerance | +-0.5mm | +-0.5mm |
| thickness tolerance | +-0.5mm | 0--0.4mm |
| Conclusion: The product all testing result is up to the standard | ||
1.Can we do printing or label printing on the glass?
Yes, you can. We could offer various printing ways: screen printing, hot stamping, label printing.
2.What is the normal lead time?
About 7-15 days according to different quantity.
3.What is your shipping terms?
A. For small trial order, FEDEX, DHL, UPS, TNT, etc can be provided.
B. For larger order, we can arrange shipment by sea or by air according to your requirement.
4.How does your factory do regarding quality control?
We do leak test for 3 times before packing.
Other question please contact me, thanks.
){kind=link}