北满特钢加热炉由烧煤气改烧油后，冷拔材表面产生严重增碳的现象。
When the fuel for the heating furnace of Beiman Special steel Corporation was changed from gas to oil, severe carbonization happened on the surface of cold-drawn steel.
北满特钢招标管理机构成立于1988年，在冶金企业招标工作中走在前列。
Tendering authority over Northern Steel was established in 1988, working in the metallurgical enterprises in the tender is in the forefront.
北满特钢招标管理机构成立于1988年，在冶金企业招标工作中走在前列。
Tendering authority over Northern Steel was established in 1988, working in the metallurgical enterprises in the tender is in the forefront.
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