choose the fused silica as the main raw material, made using modern ceramic processing technology, 

mainly used in dental alloys, platinum, gold and other high temperature melting alloys, high temperature over 

2800 degrees, high purity, corrosion resistance, high strength, high heat resistant, high shock resistance.

-Widely used in electric light, semiconductors, optical communications, military, metallurgy, building materials, 

chemical, mechanical, electrical, environmental protection and other fields.

Quartz physical and chemical properties:

1, High temperature.

2, Corrosion resistance.

3, Good thermal stability.

4, Good light transmission properties.

5, Good electrical insulation properties.

  Widely Used for smelting and assaying

• Precious Metal Analysis
• Mining Laboratory
• Laboratory Testing
• Mineral Assaying
• Fire Assaying 
• Gold Assaying

 Changsha Jintuo Experimental Equipment Co., Ltd.

 was the manufacter for crucible ,cupels ,melting pot  over 15 years .

• Got factories In shandong province and hunan respectively 
• With a strong reputation for our high quality products
• Regarded as a leader in the fire assay experimental facilities industry in china
• Service the market with a variety of ceramic shapes for melt and assay  mineral,metals etc.
• Insist on using advanced and mature technology and techniques in production with high-standard quality control system.
• clients from all over China, and export the products to Canada, Australian, Spanish and South Affric etc.