J and J precision parts established in year 2007. Located in Suzhou China. Specialized in all kinds of precise spare parts. Mainly used in meter and instruments. gas appliance optical industrial. Machine work. Etc.
Written by the business, not verified by us.Harmony precision technology co., ltd (jjprecisionparts.com) has a 5.0 out of 5 rating on OK.one, based on 2 user reviews collected here. It is listed under Electronics & Technology and its reputation is excellent. Praise is nearly unanimous, with 100% rating it 4 stars or higher. Last updated 2026-10-25.
I am fortunate to have found this company, and their team's expertise in instrument parts is beyond my previous understanding. They are also very proficient in the precision of parts, and I am very satisfied. The quality of the pressure wire obtained in the end is also very good. Overall, this is an almost perfect cooperation, and we look forward to the next cooperation!
The merchant's quotation is very solid, the service is not bad at all, and the communication is pleasant. The product is of good quality and the size meets is standard. The logistics speed is fast enough and the package is tight.
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