Technical & R&D Capability

Engineering capability

• Technical & production-scheduling teams with 10+ years of experience
• Mother-mold development; forward & reverse development support
• Filtration technology compliant with OE / purification / fresh-air system specifications
• Self-owned mold processing, developed according to OE parts

QC platforms

• LZC-K1 filter media comprehensive performance test platform (particle filtration efficiency)
• YG46E-I digital breathability meter

Representative product test report

A SogefiPro-brand air filter (manufactured by SAYING) was tested by a Russian laboratory (Global-Systems / Progress) in accordance with EAEU TR TS 018/2011. The same product platform is supplied under the SogefiPro, Westguard, or customer private-label brands.

• Standard: TR TS 018/2011 (safety of wheeled vehicles, EAEU)
• Product: air filter (SogefiPro brand)
• Scope: filtration efficiency, pressure drop, and related performance parameters

Note: This report covers the SogefiPro-branded product line; equivalent testing applies across Westguard and private-label variants produced at the Xuancheng plant.

Media specifications (data set)

SAYING uses international-grade filter media (Ahlstrom, Freudenberg, NEWSTAR, etc.) with documented grammage, thickness, burst strength, pore size and air permeability parameters — available as a structured data set for buyers' engineering evaluation.

Related pages

• Supplier authority & brands
• Manufacturing capability & capacity
• Certification & compliance