The valve is characterised by heavyweight, special shape, bad welding performance, but demanding excellent welding quality etc.

此类阀门具有质量大、形状特殊、 焊接可达性差，焊接质量要求严格等特点；

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Normal running of chemical equipments and quality of products are effected by welding quality of special chemical equipments.

特种化工设备焊接质量的好坏直接影响到设备的正常运行和成品的质量。

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This special welding machine has rational structure, USES PLC for automatic control, reduces labor intensity, and improves work efficiency and welding quality of workpiece.

该焊接专机结构合理，利用PLC进行自动控制，降低了工人的劳动强度，提高了工作效率，改善了工件焊接质量。

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