产品方案：项目产品采用激光烧结热挤压高新工艺技术生产汽车发动机进排气阀座。
Product plan: adopt laser sintering hot-extrusion to manufacture the inlet and outlet valve seat of auto engine.
项目建设背景：汽车发动机进排气阀座是各种汽车发动机的主要部件，目前该产品国内汽车生产厂家大部分从国外进口。
Project Background: the inlet and outlet valve seats of auto engine are main components of various auto engines and internal auto manufacturers import the product mostly.
项目建设背景：汽车发动机进排气阀座是各种汽车发动机的主要部件，目前该产品国内汽车生产厂家大部分从国外进口。
Project Background: the inlet and outlet valve seats of auto engine are main components of various auto engines and internal auto manufacturers import the product mostly.
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