Jovvi international
| Payment Terms | T/T |
| Residual Stress | <20 nm/cm |
| Melting Temperature | 1,350°C |
| Density | 5.5 G/cm³ |
| Place Of Origin | China |
| Supply Ability | 2000 Pcs Per Month |
| Light Transmission | 84-86% |
| Delivery Time | 5-8 Work Days |
| Surface Roughness | <10 nm |
| Packaging Details | In Wooden Case Or Customized |
| Lead Oxide Content | 55-65% By Weight |
| Brand Name | Jovi |
| Certification | CE |
| Model Number | 1-cf-15 |
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Product Specification
| Payment Terms | T/T | Residual Stress | <20 nm/cm |
| Melting Temperature | 1,350°C | Density | 5.5 G/cm³ |
| Place Of Origin | China | Supply Ability | 2000 Pcs Per Month |
| Light Transmission | 84-86% | Delivery Time | 5-8 Work Days |
| Surface Roughness | <10 nm | Packaging Details | In Wooden Case Or Customized |
| Lead Oxide Content | 55-65% By Weight | Brand Name | Jovi |
| Certification | CE | Model Number | 1-cf-15 |
Jovvi sources lead oxide (PbO) with purity >99.9% from ISO‑certified smelters. Cerium oxide (CeO₂) is pharmaceutical grade. Each batch of raw material is assayed before mixing – rejected if impurity levels exceed 0.05%.
The glass formula for nuclear grade:
Melting occurs at 1,350°C in a platinum‑lined furnace to prevent contamination. Melt time: 24 hours.
Glass is cooled from 450°C to 100°C at a controlled rate of <5°C/hour. Residual stress measured by polariscope must be <20 nm/cm – stricter than ASTM F218 requirement (which allows 35 nm/cm). Low stress prevents spontaneous fracture during thermal cycling in nuclear medicine departments.
CNC waterjet cutting – tolerances ±0.5 mm. Edges ground with 400‑grit diamond wheel, then polished to 1,200 grit. Both faces polished to <10 nm surface roughness (standard: <50 nm).
Every nuclear grade panel receives a laser‑etched serial number on the lower edge (not visible from control room side). The serial number links to:
Wooden crate with:
| Pb Equivalent | Standard Lead Time | Express (additional 30%) |
|---|---|---|
| 2.5–3.0 mm | 25 working days | 15 working days |
| 3.5–4.0 mm | 35 working days | 20 working days |
| 5.0 mm or composite | 45 working days | 30 working days |
Company Details
Year Established:
2010
Total Annual:
10000000-20000000
Employee Number:
100~500
Ecer Certification：
Verified Supplier
Jovvi(Beijing Hengtai Tech Co., Ltd) was established in 2010. The company adheres to the development concept of “integrity all over the world and conducts all continents”, adheres to the business policy of “strive to create greater value for customers”, and is committed... Jovvi(Beijing Hengtai Tech Co., Ltd) was established in 2010. The company adheres to the development concept of “integrity all over the world and conducts all continents”, adheres to the business policy of “strive to create greater value for customers”, and is committed...
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