The main production technology of BSEC includes alloy melting, continuous casting continuous extruding, rolling, online detection, drawing molding, heat treatment, etc.
北赛电工接触线的生产工艺主要包括合金熔炼、连续铸造、连续挤压、轧制、在线探伤、拉拔成型以及热处理等。
The production of oil, the country's main source of income, has been steadily falling due to a lack of technology and investment.
而这个国家的主要的收入来源石油业也由于缺乏技术革新和资本投入在不断下滑。
Main technology parameters between round and s (Z) type winding package steel wire are compared, production process and technology requirement are given.
对圆型和s (z)型绕包镀锌钢丝主要技术参数进行对比，并给出生产工艺和技术要求。
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