Đồng hồ đo độ cứng cao su, nhựa PTC Asker C model 603
The PTC® 603 Durometer comes complete with carrying case, test block and a magnetic max hand that holds the peak reading until reset. The durometer can be used either with a test stand, hand-held or with the constant load 1 kg load weight Model 441. The Model 441 will allow even more consistent measurements when taking readings.
Asker C Durometers meet JIS K7312.