通过对成品钢管各项性能的检测，分析了北方重工生产的锻造镗孔无缝钢管的产品质量和特点。
The product quality and character of boring seamless steel pipe produced by the North Heavy Industries Group Corp.
北方重工拥有完整的设计、试验、检测和计量手段，拥有完整的生产制造体系，有各类大型加工设备5000余台（套）。
NHI has complete facilities for design, test, inspection, measurement and complete manufacturing system. NHI is equipped with about 5000 sets of various large-scale machines.
北方重工拥有完整的设计、试验、检测和计量手段，拥有完整的生产制造体系，有各类大型加工设备5000余台（套）。
NHI has complete facilities for design, test, inspection, measurement and complete manufacturing system. NHI is equipped with about 5000 sets of various large-scale machines.
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