91中文精品,污污的视频免费在线观看,91就要激情,精品黄色网,欧美精品看片,久久久久久a亚洲欧洲aⅴ,天天干天天色综合网

Main Products
Products Grade: DT4
Specifications: φ5.5～40mm
Applied Standard:  Mutual agreement with Client
Characteristics: The prouduct of DT4 is mainly for the manufacture electromagnetic part such as electrical equipment、telecommunication、instruments、industry of national defence and electromagnetic core.
Applications: Electromagnetic iron
Use of Products: DT4 is belong to electromagnetic ingots with high aluminium content.The product of DT4 feature stable chemical composition,low tramp elements, high purity,good surface quality,high dimensional accuracy,good electromagnetism.The coercive force of the product is low.