HomeProductsFurniture Testing Chair Testing Machine JTM-OC1600A Chair Seat Impact Tester JTM-OC1700A Chair Caster Durability Tester JTM-OC1800A Chair Swivel Tester JTM-OC3000 Office Desk/ Chair Universal Tester JTM-1500 Chair Back Tester JTM-1150 Drop Tester JTM-OC2600 JTM-OC2700 12