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It is yarn that after processing and twisting fiber with diameter of 5.5um, 8um, 9um and 13um and be used to make various fiberglass fabrics.
1) Specifications: EC75, EC150, EC225 EC450 1/0 1/2 1/3 1/4
2) Twist: 28 - 140 per meter, Z or S
Note: if inner bobbin with paper core, then net weight of roving is 500g. If inner bobbin with plastic core, then net weight of roving is 3kg.