The invention relates to an aluminum valve bar for automobile braking pump and the manufacturing process.
本发明涉及一种汽车制动泵用铝制阀门杆及其制造工艺。
On the other hand, Tri-Ring is one of leading local valve manufacturers in China in fields like production ability, design, manufacturing process technology, quality assurance and customer service.
湖北三环在气门生产能力、 设计开发能力、工艺与制造技术、质量保证、客户服务等各个方面处于国内一流水平。
The invention discloses an air valve heat-straightening process method which belongs to a manufacturing method of an engine air valve, in particular to a method for straightening the air valve.
本发明公开了一种气门热校直工艺方法属于发动机气门的制作方法，特别是校直气门的方法。
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