成人免费a视频,李雅在线观看一区国产,五月婷婷狠狠,精品国产自在2o18,狼伊人,五月天丁香婷婷网,久久亚洲精品无码观看不卡

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.