Stretching force test during the separation of telescopic straws, using a 500N straws tensile tester, gently pulling the straws, clamping the ends of the straws with a special straws fixture, stretching the straws by GB/T1040.3, stretching at a speed of 50mm/min, Read the maximum stretch value when the two straws are separated. Test 10 straws, the results are averaged. |