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Quality
Keeping defects from ever reaching our customers — the first principle of APRO quality.
Standards
Meeting the standards of semiconductor and pharmaceutical customers
Cleanroom
Converting room
Class 10,000
Our bag-making (converting) room is operated as a Class 10,000 cleanroom.
Static control
10⁹–10¹² Ω
We set the surface resistance of anti-static products within this range. Narrower ranges can be arranged on request.
Particles
≤ 0.3 µm
control
We control even the tiniest dust (particles) inside the bag.
Thickness & width
Every roll
recorded
The rotating die keeps the thickness even, and the thickness of every roll is measured and recorded.
Defect Prevention
Defects we keep from reaching you
When we catch a defect in our plant, it costs only us; when it reaches a customer, trust is lost. So we check carefully for the defects below.
Traceability
Records connect resin to shipment
If a problem occurs, we can trace back which resin, when, and which roll the product was made from.
- 01Resin receivingLOT number recorded for each resin
- 02Work orderWhat and how much to make
- 03Extrusion roll recordsRoll no. · thickness · inspector · date
- 04Converting & inspectionMade into bags, defects removed
- 05ShipmentDestination recorded
Certifications
Certifications
ISO 9001
Quality management system certification. Our quality procedures were revised to ISO 9001:2015 in September 2026.
ISO 14001
We are preparing for environmental management system certification.
Please contact us if you need a copy of a certificate.
Need quality documents?
Tell us the standards and documents you need, and we’ll look into it for you.