... (RCT, ECT, PAT, FCT, CMT) 1. Ring crush test, 2. Edge crush test, 3. Flat crush test Crush tester for paper and paperboard (RCT, ECT ... , Argentina, Peru, Costa Rica, etc.1. Description:PN-CT300B type crush tester is a new type of compression testing instrument developed ... precision.It applies to the test of Ring Crush Test (RCT), Edge Crush Test (ECT). Flat Crush Test (FCT),Pin Adhesion Test(PAT).2 ...