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連絡先担当者 Ms. Miss
NO.18# 1-703, Zhangxin Road, Dalian, Liaoning
Balls & balls with drlled hole jewels are made of synthetic sapphire/ruby. They are largely used in heavily corrosive environment and optical fiber communication because of its anticorrosion, wearable and fine transmission characteristics. Balls measuring head jewels are used as insulated measure head on precise instruments.