The operation practice shows that the design and development of stand by burner and multifunctional top lance are perfect in functions, convenient for use and provided with advanced world level.
投产实践证明：预热枪和多功能顶枪控制系统的开发和设计功能完善、使用方便、具有当今世界先进水平。
The operation practice shows that the design and development of stand by burner and multifunctional top lance are perfect in functions, convenient for use and provided with advanced world level.
投产实践证明：预热枪和多功能顶枪控制系统的开发和设计功能完善、使用方便、具有当今世界先进水平。
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