 
技術(shù)部——堅實的技術(shù)實力
Technical department with power technical force
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焊接工藝評定（PQR）及展示廳
Welding processing evaluation and exhibition room
|
Technical
|
技術(shù)部——堅實的技術(shù)實力
Technical department with power technical force
|
|
焊接工藝評定（PQR）及展示廳
Welding processing evaluation and exhibition room
|