列表:API 5L PSL2
API 5L PSL2 API 5L X80 ERW pip (02-01)
API 5L PSL2 API 5L X70 ERW pip (02-01)
API 5L PSL2 API 5L X65 ERW pip (02-01)
API 5L PSL2 API 5L X60 ERW pip (02-01)
API 5L PSL2 API 5L X56 ERW pip (02-01)
API 5L PSL2 API 5L X52 ERW pip (02-01)
API 5L PSL2 API 5L X46 ERW pip (02-01)
API 5L PSL2 API 5L X42 ERW pip (02-01)
API 5L PSL2 API 5L Grade B ERW (02-01)
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