In the coal face, tubing length of 1000 meters, up to more than 4000 joint socket, the tank without a special dust-proof facilities.
在采煤工作面，油管总长1000多米，接头插口多达4000多个，液箱无特殊的防尘设施。
Products range covers: out door Power socket, water proof cable connector, water proof remote control switch box and full armoured cable kits.
包括：开关，铠装电缆，户外插座，防水电缆连接器等。
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