To finalize the program as follows: all rooms used fan-coil plus fresh air system, this building used as a screw-type chiller cold source.
最终确定方案为：所有房间采用风机盘管加新风系统，本建筑物采用螺杆式冷水机组作为冷源。
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Our company manufactures and sales all kinds of the nails, such as lined nails, Plastic strip nail, galvanize nails, popular coil nails, concrete nails, screw nails and so on.
The 13.31 is a simple monostable relay with screw terminals suitable for interfacing applications where the coil is low-voltage (e. g. 24 v) and load is at the supply network voltage (230 v).