... ,ROHS. 5.OEM are welcome. TB series adopt plate-type,screw-clamping,low base, sealed and integral construction, rating voltage 600V ... .Adopt flaming- retarding VO- grade PC as plastic base. The screw increase the bearing force after heart treatment, no slip thread ... time after special anti-salt and fog treatment. Also , stainless steel screw are available, special use for high-acidity and on the ...