The international famous brand development, the proportion of oil pump valve, solenoid valve, hydraulic parts, hydraulic control function is good.
选用国际知名品牌油研的油泵、比例阀、电磁阀等液压配件，良好的液压功能控制。
In that cold cold can regulate the ball for the proportion of solar energy mix water valve.
图中冷热球阀即为能调节冷热水比例的太阳能混水阀。
Control accuracy was effectively increased by a customized electric proportion valve.
定制的高精度电气比例阀有效提高了程控调节精度。
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