综合 ... 区域供热 regional heating 城市供热 municipal heat-supply 城际供热 interurban heat-supply ...
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development program of municipal heat-supply 供热规划
FRYS series heat-shrinkable sleeve products are designed for connection and sealing of ports of double-wall corrugated pipe for water discharge and supply of municipal engineering.
热缩系列产品,是为市政工程排水、给水用双壁波纹管端口连接密封而设计的。
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