冷扎钢，电梯型材，车厢板，电气结构件制造，销售，五金配件，带钢购销。
Lengzha steel, elevators reach, train boards, electrical structural equipment manufacturing, sales, hardware accessories, strip steel procurement.
钢淬透性的定量计算在结构件钢种的设计与制造中具有重要意义。
Quantitative calculation of steel quenching degree has very important significance for design and manufacture of steel species applied to structure.
制造过程的中关键在于控制构件焊接质量和焊接变形，从而保证钢箱梁的接头质量和钢箱梁的尺寸。
The key of manufacture is controlling the welding quality and the welding deformations of the steel components to assure the junction quality and the dimensions of the steel beam.
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