Our Management System Certificates

What the certificates cover

All eight certificates were issued for the same manufacturing scope: manufacturing of metal chains (except for articulated connection chain) and parts, springs and spring leaves, coated or core wires, rods, tubes, plates and electrodes — except those used in electrical works and those with electrical insulation.

That scope covers everything we do at the Biga plant: agricultural implement and machinery springs, industrial compression and extension springs, torsion and form parts, and wire form production.

The certificates were issued by Ekol Belgelendirme Şirketi (Maslak, İstanbul). Each certificate number is listed below and can be checked on the certification body's own lookup page. All eight are also available as a single PDF.

A certificate is a commitment to method, not a guarantee of performance

A management system certificate does not guarantee that a product will reach a particular performance figure — that needs saying plainly. What it says is that a written order for how the work is done has been established and has passed an independent audit.

In spring manufacturing that has a practical meaning: which wire came from which batch, which heat treatment regime was applied, who checked the dimensions and with what instrument — all of it recorded. If a part fatigues earlier than expected in the field, it can be traced backwards.

For the technical properties of the product itself, look at the dimensions rather than the certificate: wire diameter, coil count, leg angle and material. Those are stated separately on every quotation, and final production is verified against the real values on the wire supplier's certificate.