We are manufacturer of GSM Testing Machine as per Standard ASTM D 3776, ISO 3801 br GSM Round Cutter is made of fine quality Aluminium alloy. br Diameter of GSM sample : 112.8mm br Area of specimen 100 cm square br GSM Tester Capacity: 60,000 GSM br Accuracy: 1 GSM br For Inquiry : call +91-8802270444, +91-11-65659697 br Email: info@texcare.co.