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1·Tell the pipelayer that he has to be careful with the gas pipe.

告诉管道安装工煤气管道要小心。

2·The company has the better technology strength and nine patents of pipelayer.

公司技术力量雄厚，拥有各种专利9项。

3·DaiFeng brand has become the named brand in pipelayer industry in China through the steady quality and outstanding services. The variety and market share ranks the first in China.

吊管机以其稳定的质量和优质的服务成为中国吊管机行业的著名品牌，吊管机品种和市场占有率两项指标均居国内第一。