Ceramic Temperature Measurement Rings 1)Easy to be used,placed and ... in both batch and continuous tunnel kiln Ceramic Temperature Measurement Rings PTCR-BQS23: dia 20mm out dia 10mm in ... PTCR brings the benefits of easy, accurate kiln temperature measurement to a wide range of industries.Our company can supply ... High temperature refractories, and kiln bricks, etc. Ceramic Temperature Measurement Rings