PZ41H-25,PZ41Y-16C耐磨排渣阀

J961Y-200 J961Y-250 J961Y-320电动焊接截止阀

J561Y J461Y伞齿轮焊接截止阀 正齿轮焊接截止阀

Z62Y-200 Z62Y-250 Z62Y-320焊接闸阀

Z961Y-200 Z961Y-250 Z961Y-320电动焊接闸阀

Z560Y Z561Y Z562Y伞齿轮焊接闸阀

Z960Y-200 Z960Y-250 Z960Y-320电动高温高压闸阀