linepipeSeamWeldType No Data 0 No Data Submerged Arc Weld 6342 Submerged Arc Weld Electric Resistance Weld 6343 Electric Resistance Weld High Frequency Electric Resistance Weld 6344 High Frequency Electric Resistance Weld Double Submerged Arc Weld 6345 Double Submerged Arc Weld Low Frequency Electric Resistance Weld 6346 Low Frequency Electric Resistance Weld Lap Weld 6347 Lap Weld Direct Current ERW Weld 6348 Direct Current ERW Weld Electric Fusion Weld 6349 Electric Fusion Weld Seamless 6350 Seamless Butt Weld 6351 Butt Weld Flash Weld 6352 Flash Weld