| 摘要 |
PURPOSE:To provide a method for easily setting at the time of clamping even if a piping material to be connected includes a joint, etc., such as an elbow, etc. CONSTITUTION:The method for connecting a piping material comprises the steps of providing marks P for indicating at least one positions of outer peripheries of outer peripheries S1, S2 of ends of the piping materials J1, J2 in a circumferential direction, fixing the materials J1, J2 in a state that reference marks G provided at a pair of clamps 1, 2 are matched to the marks P of the materials when the materials J1, J2 are grasped by the clamps 1, 2, and then relatively rotating the clamps 1, 2 at a grasping center as an axis to set angles of the materials J1, J2. |
