سڌائي واري سيمينٽ پائپ جي پيداوار ۾ ڌيان ڏيڻ جي ضرورت آهي

1. The thickness of capillary wall shall be uniform and there shall be few internal and external surface defects; External surface polishing and internal hole defect cleaning equipment shall be equipped. 2. Compared with the ordinary cold drawn steel pipe, the cold drawn precision seamless pipe production increases the pickling and re inspection process of hot-rolled capillary, which is…