website:https://www.jhmindustry.com/
Shanghai Jian & Mei Industry and Trade Co., Ltd. is the company which manufacture and export fasteners and metal hardware, founded in 2006, with import-export authority. Now, 80% products export to all over the world and 20% sell in domestic market.
On the older style calipers that have two pistons and mount with two bolts it is CRITICAL that they are inspected and installed properly or they may come out while driving. Link to brake parts: https://mercedessource.com/store/search?keys=brake