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济南恒瑞金试验机有限公司 山东省计量测试学会力值硬度计量专业委员会委员

（试验机服务中心）（试验机配件供应中心）（特殊夹具定制中心）

Jinan Heng Rui Jin Testing Machine Co., Ltd. Shandong P.R.C；

www.jn-syj.com；www.jnshiyanji.com；www.hrjtest.com；

http://www.jnshiyanji.net；www.jnshiyanji.cn；