E-cr roving, e glass roving boron-free, low boron E-cr roving boron-free is a kind of continuous e glass roving, boron-free. Ecr roving is unbonded borosilicate e glass fiber; it is capable of withstanding severe thermal shock and vibration. E-cr roving is stable in serious environment; it shows exceptional recovery from compression, does not accelerate corrosion of metallic components. E-cr roving exhibits excellent acoustic properties, marking it suitable for use in many types of hot silencing applications, including exhausts with high gas flow rates. 6. Withstanding severe thermal shock and vibration Techinical papameters Specifications E-cr roving is available from 300tex to 9600tex. 20 pallets/ 20'fcl Aprx. 20 metric tons/20'fcl