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Welding Basically 7 Type and their are PA- IG/IF PB- 2F PC- 2G PD- 4F PE- 4G PF- 3G/F Uphill PG- 3G/F Downhill
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Welding Basically 7 Type and their are PA- IG/IF PB- 2F PC- 2G PD- 4F PE- 4G PF- 3G/F Uphill PG- 3G/F Downhill