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| Zhongzuan (Chongqing ) Precision Tools Manufacturing Co., Ltd. | |
| CN,Chongqing,Chongqing,5-1-2 Attached To 175 Tianmazhi Road, Shapingba District | |
| 86-023-65159152 | |
| info@zhongzuantools.com | 
China Good Quality Metal Drilling Bit Supplier. © 2021 - 2025 Zhongzuan (Chongqing ) Precision Tools Manufacturing Co., Ltd.. All Rights Reserved.
