The precision steel machining parts is L base, which is one accessory of the bicycle. The material is carbon steel, and the side is a round slot. For the custom steel machining parts, MOQ is 2500 PCS and the lead time is 25 days. JST has made many steel machining bicycle parts, most of them were exported to Holland and Denmark. If you have any inquiries for precision custom steel machining parts or custom steel machining bicycle parts, please do feel free to contact us for quotation and JST is the professional OEM manufacturer in China.