- 922 Changcheng Mansion, 22 Shijingshan Rd, Shijingshan Dist., Beijing 100040, China
- Engineering Metalurgy castings valve.
- Address:922 Changcheng Mansion, 22 Shijingshan Rd, Shijingshan Dist., Beijing 100040, China Beijing Beijing 100040 China
- Shuangyuan Precious Metal Parts Co.,Ltd
- tri-metal button contact, interal oxidized contact, powder metalurgy contacts, contact rivets.
- Address:No.586,Jiahe Road,Huli,Xiamen,China Xiamen Fujian 361009 China
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