发布时间:2025-01-23 11:23:29
什么材质的立板,木制的直接在上下板上上螺丝固定,没有上下板就用角码固定(五金店有卖的),如果是水泥板就用膨胀螺栓
有没有浮头式换热器单壳程四管程的啊还有二管程的和四管程的图有什么不同的
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