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Black board: 575x250x160x3mm
Tensile method:pressing by grade
Reeling density: 7.9.11.13.15.19 pieces/cm or 20pieces/4.5cm the density has seven gears
Yarn frame speed: 0-350r/min step-less
Dimensions: 1065x450x270mm (LxWxH)
Weight: 26.5kg
Standards: ASTM D2255
Standard accessories: blackboard
Optional accessories: whiteboard
