Tubes Of Glass Having A Linear Coefficient Of Expansion <= 5 X 10-6 Per Kelvin Within A Temperature Range Of 0°C To 300°C, Unworked (Excl. Tubes Of Glass Having A Linear Coefficient Of Expansion <= 5 X 10-6 Per Kelvin Within A Temperature Range Of 0°C To 300°C)
Tubes Of Glass, Unworked (Excl. Tubes Of Glass Having A Linear Coefficient Of Expansion <= 5 X 10-6 Per Kelvin Within A Temperature Range Of 0°C To 300°C Or Of Fused Quartz Or Other Fused Silica)