Profile: Jiangsu Changlong Petrochemical Equipment Co., Ltd. supplies loading arms & wharf equipments. We design, manufacture, install & provide maintenance for marine, railcar & truck loading arms, quick connect/disconnect, emergency release coupler systems, twin sealed guideway valve and gangway/quick release hook. RC single pipeline marine loading arm is a rotary counterweight marine loading arm. Arm on vehicle loading arm consists of two parts such as marine loading arm connected with vessel and land loading arm connected with the local pipeline. Remote controller helps the loading arm to be connected or disconnected with vessel or site pipeline. Truck loading arm is used for loading the trucks & rail cars. It is used in oil transporting station & chemical factory. It consists of hydraulic loading arm, drawing and central control system. The hydraulic loading arm system composes of elevating device, stretching device, hydraulic station and a movable car. The elevating device helps to push the elevating pipe close to the bottom of the railcar, and it is operated hydraulically. Tower loading arm is used to transport liquid from the refinery factory to the railway station.