self-acting type temperture control valve
Self-acting type control valve 自力式调节阀 Self-acting type temperture control valve 自力式温度调节阀 quick-acting self-closing gate valve 速动自闭闸阀 ..
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self-acting type temperture control valve
自动式温度控制阀
以上为机器翻译结果，长、整句建议使用 人工翻译 。