Why Choose Sinwinf
Four in-house processes, multi-stage quality control, and 15 years of production experience in China.
Backed By Equipment, Not Promises
15 Years of CNC Production
Founded in 2011 in Shenzhen, serving electronics, automotive, lighting and hardware clients worldwide.
Four Processes, One Roof
Turning, drill-tapping, Swiss-type and automatic turning — all in-house, no subcontracting.
Japanese Tsugami Swiss-Type
Sliding-headstock lathes for long, slender, small-diameter precision parts.
DFM Review Before Quoting
We review every drawing for tolerance, tooling and feasibility before sending a quote.
First-Article Approval
A dimensional report and sample ship to you; mass production starts only after sign-off.
Shenzhen Manufacturing Base
In Bao'an — at the heart of China's hardware supply chain, close to materials and shipping.
Quality Control At Every Stage
IQC
Incoming material inspection before any cutting begins.
IPQC
In-process checks with 2.5D vision measuring.
FAI
First-article sample with dimensional report.
OQC
100% visual inspection before shipment.