STI-TO30,TEST OBJECT 30 MM DIAMETER
STI-TO34,TEST OBJECT 34 MM DIAMETER
STI-TO40,TEST OBJECT 40 MM DIAMETER
STI-TO53,TEST OBJECT 53 MM DIAMETER
【IDEAL-TEK】ST-IT-T,
【IDEAL-TEK】ST-IT-THP,
【IDEAL-TEK】ST-IT-TSHP,
