Milky white silica quartz crucibles with cover 

Product Description: 
1.Extraordinary Reliability - 
Thermo Materials' ISO 9000 quality system mandates 100% inspection using assisted visual, ultrasonic and other quality assurance techniques for crucibles 

2.Outstanding Thermal Shock Resistance 
It maintains the lowest coefficient of thermal expansion of any commercially available material 

3.Excellent Refractoriness 
They are reliable performance to extreme temperatures and pressures.

the chemical composition of quartz boat: (unit: ppm)

Al	Fe	K	Na	Li	Ca	Mg	Cu	Mn	Pb	B	Ti
20	1.0	3.5	3.5	1.0	2.0	0.5	0.3	0.5	<0.01	<0.2	2.0

Our Services 
1. OEM service 
2. Produce per customers' request such as design & package & printing logo 
3. Special package for fragile products to make sure no broken in transportation