OEM/ODM auto parts to OE tolerance — from drawing to mass production
OEM/ODM factory in Ningbo — brake, chassis, powertrain and housing parts · ±0.01 mm tolerance · send a drawing, get DFM feedback in 48 hours · sample with CMM report in 15 days
Why Tier-1 buyers move programmes to us
Three CMMs measure every lot to the control plan. The report ships with the parts, unasked.
Twelve engineers review your drawing and flag cost-down options that keep the spec, before we quote.
No sub-tier suppliers. We control the schedule and quality across the whole line — 98.6% on-time delivery.
PSW, FMEA, control plan, MSA and material certs ship with the sample so approval takes one round.
Brake systems

G3000 cast iron · Runout ≤ 0.03 mm

HT250 cast iron · Ø tol. ±0.05 mm

A356-T6 · Bore Ra 0.8

SPHC 4–6 mm · Flatness ≤ 0.1 mm
Chassis & steering

40Cr forged · ±0.05 mm

SCM435 · POM seat · Play ≤ 0.05 mm

45# steel · M14×1.5 6g

QT500-7 · ±0.02 mm bore
Engine & powertrain

Chilled cast iron · Lobe ±0.01 mm

20CrMnTi · DIN 6

Cast iron · rubber damper · Balance ≤ 5 g·cm

HT250 · Balance ≤ 10 g·cm
Housings & castings
Fasteners & stampings

35CrMo · ISO 898-1

SPCC 2–4 mm · ±0.1 mm

65Mn · ±0.05 mm

1050 Al 0.5 mm · ±0.3 mm
98.6% on-time delivery in 2025 · customer-detected defects ≤ 25 PPM · 14 customer audits, all passed
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