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（Des:）To
test dry strength, wet and moisture strength, elongation rate,
lea
strength of single yarn or ply yarn thread, strength of fiber
knot joint,
hanging and pulling strength, seam strength of textile for all
kinds of materials and knitting wears, specimen of knitting wear
etc. There are
strip
method and grab method for stretch test. Also used for
determining the tensile strength and elongation of longitudinal
direction
and lateral direction of paper
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