- High-Frequency Electric Resistance Welding (ERW) In this method, electrical currents are passed through the edges of the metal strips to heat them, allowing them to fuse together under pressure. This technique is highly efficient and produces a continuous weld along the length of the pipe.
2. Type of Decoiler There are various types of decoiler machines available, including manual, semi-automatic, and fully automatic models. Manual decoilers are less expensive but require more labor and are slower, while fully automatic machines offer high efficiency and can be integrated into automated production lines, leading to higher prices.
