Lampscity Co.,Ltd has specialized in API tungsten carbide ball and seat as valve pairs.
V11-106
V11-125
V11-175
V11-225
V11-250
YG12, 12% Cobalt, 88HRA, 14.3G/CM3, 2450N/mm2
V11-106
V11-125
V11-175
V11-225
V11-250
YG12, 12% Cobalt, 88HRA, 14.3G/CM3, 2450N/mm2
sales@solarsoncarbide.com