久久国产99精品日本精品三级,东北一区二区三区黄片,久久精品99国产精品,日本69式视频在线播放,精品人妻无码一区二区性色,成人三级一区二区成人,四虎国产精品成人免费久久,激情五月综五月天天橹综合网,国产精品视频二区三区

NUOMENG produce kinds of pipe products which have DIN,3A,SMS,ISO/IDF,BS-RJT,DS and so on various  

standard series.And pipe fitting:45°/90°/180° bend series,tee/crossj series,concentric(eccentric) series make 

your pipeline system free connectivity.Each series pipe fittings have welding ,clamp,thread and flange four

common install ways with your pipe system standard link.

NUOMENG according to the customers requirements,devoted itself to manufacturing the kind of fitting materials

which can resistant to corrosion,wearing ,welding and combination and have high intensity.In each  manufacturing 

process have strict control error,and pipe connectors have a variety of surface treatment methods,and uniform

shell thickness.