Since 2011 carbon and alloy steel seamless pipes for synthesis of carbon steel pipe and outer pipe project of Inner Mongolia Donghua Energy Co., Ltd.
2011年起供内蒙古东华能源有限责任公司合成碳钢管道和外管项目用合金管和碳钢管。
With the development of Sinopec and the increasing proportion of the Sulfur in petroleum, the demand of the alloy steel pipe used in Sinopec producing equipments is unceasingly increasing.
随着中石化原油加工量及原油含硫比例的不断提高，中石化生产装置用合金钢管的需求量不断加大。
Main products include ductile manhole covers, composite resin covers, drill rod cement covers, galvanized steel grating, polymer alloy covers, cast iron manhole covers, flower bar, cast iron pipe.
主营产品有球墨井盖、复合树脂井盖、钢钎水泥井盖、镀锌钢格板、合金高分子井盖、球墨铸铁井盖、铸铁井盖、花栏、铸铁管等。
The present invention discloses a manufacture method for a composite layer of a complex alloy steel pipe, a fastening element, and a protective grating.
本发明公开了一种多元合金钢管、紧固件、防护栏复合层的制作方法。
The results show that by using spray and strong breeze quenching, heavy-calibre wear-resisting bend pipe made of low alloy steel may easily arrive a good quenching effect.
结果表明，大口径低合金钢耐磨弯管采用雾风冷却可以方便地得到满意的淬火冷却效果。
Our company professionally offers all kinds of stainless steel, alloy steel, carbon steel pipe.
本公司专业提供各种不锈钢，合金钢，碳钢管件…
It is characterized by that it is formed from 5 layers of plastic pipe, adhesive layer, steel pipe, alloy layer and hole-sealing film in turn fron inside to outside.
其特征在于该合金钢塑复合管由5层组成，从里到外依次是塑料管、粘结剂层、钢圆管、合金层、封孔膜。
In Metal fields, we supply Stainless Steel, Special Steel Alloy, Vacuume Insulation Panel, Cleaner for Metals, Steel Pipe and Wire Pipe Products.
在金属方面，我公司涉及的有：不锈钢，高合金材料，真空隔热材，金属油污清洗剂，管材，线材加工品等产品。
The microstructure and composition distribution of the iron-nickel alloy lined layer in a composite steel pipe produced by centrifugal-SHS process were investigated.
研究了铝热 -离心法制备的铁镍基合金内衬复合钢管的组织结构 ，分析了内衬层沿径向的成分分布。
The microstructure and composition distribution of the iron-nickel alloy lined layer in a composite steel pipe produced by centrifugal-SHS process were investigated.
研究了铝热 -离心法制备的铁镍基合金内衬复合钢管的组织结构 ，分析了内衬层沿径向的成分分布。
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