Tenders for Supply of Cylindrical Flash Back Arrestor For Oxy-Acetylene Cutting Torch Oxygen Gas Supply. . Q3, Cylindrical Flash Back Arrestor For Oxy-Acetylene Cutting, Torch Acetylene Gas Supply Side Q3, Cylindrical Flash Back Arrestor For Oxy- Acetylene Cutting, Regulator Oxygen Gas Supply Side Q3, Cylindrical Flash Back Arrestor For Oxy-Acetylene Cutting, Torch Oxygen Gas Supply Side. Q3