paintcoat

1.Mechanical strength of pipe coating and its thickness of standard paintcoat must be ensured in the pipe coating production lines,two pipes in the course of coating must be flexibly jointed.

管道敷生产线要保证管件敷的机械强度及标准的厚度,两根管子在敷中要保证柔性顶接,连接处不能有缝隙。