According to the specific circumstances of the project can also take charge of construction directly weldedpipe, but must check a stainless steel tube joint can demand reinforcement.
依据工程的详细状况也可以采取主管上直接焊接支管的构造，但必需校核支不锈钢管衔接处能否需求补强。
2
What are the major challenges that the Italian weldedpipe sector is facing?
是什么，意大利焊管行业面临的主要挑战是什么？
3
The quality of roller directly effect weldedpipe quality.