Language : English
张劲

Patents

一种顶杆和垫片组合式金属蠕变成形模具

Affilication of Author(s):一种顶杆和垫片组合式金属蠕变成形模具

Disigner of the Invention:张劲

Type of Patent:Invent

State of Patent:Authorized patents

Service Invention or Not:no