... productsThe main product is hi-performance bare spandex yarn,15D,20D,30D,40D,70D,105D,140D,210D,280D,420D,560D,840D,1120D ... the different gradesby workers and packed in the grading workshop. 6.The finished products will be tested the physical properties by ... ).( 4)Spining finish(%).(5)Elastic recovery percent at elongation 300%.(6)Boiling water Shrinkage(%). 7.Package: Packed in seaworthy cartons. The ...