GK90CU120T1H GK90CU60T1H GK90SG120T1H GK910 GK-9-21C GK-9-21C-1/2 GK-9-21C-1/2A95 GK-9-21C-1/2-V GK-9-21C-5/8 GK-9-21C-5/8-V