Min. Order Reference FOB Price
1 Piece US$6,600.00-7,000.00 / Piece
Product Description
Product Description This machine is used to test the torsional strength of the zipper head. The test is done by fixing the puller and the zipper head separately and then twisting them at a speed of 1.5 revolutions per minute, and after they are broken, the display will keep the maximum torsional ...