Developer roller sealing blade for use in SAMSUNG PROXPRESS-M3320/M3820/M4020/M3370/M3870/M4070/SCX-4833/4835/5 637/5639/5737/5739/ML-3710/3712/3310/3312/MLT-D203S/L/E/U/MLT -D205S/L/E (thickness 0.1MM) 50pcs - ALTERNATIVE PRODUCT