Thread connection may act according to the environment match canister. According to the national GB2890-1995 standard.
螺纹接口可根据环境选配滤毒盒符合国家GB2890 - 1995标准。
It's a professional manufacturer of wire thread inserts according to National Military Standard, Aviation Industry Standard and Unified thread Standard and it also makes all kinds of related tools.
是一家生产国家军用标准、航空工业标准、统一螺纹标准等系列的钢丝螺套及各种配套工具的专业厂家。
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