Error quota 0-30 ppm. That is hard to copy.

Schock's quality assurance and engineering performance are second to none. The optical system of a Xerox copier follows a low tolerance curve resulting in many years of fault free service.
By working closely with leading industrial customers, Schock has developed a quality assurance system that sets the highest standards. Xerox, for example, listed Schock as a "Certified Supplier" following consistent proof of an extremely low error quota over long periods of time. Only above-average service denotes such a distinguished title.
TQM – Already a reality at Schock
Total Quality Management is not just a company principle. TQM directives are realized, not only in production, but also in all pre and post-storage aspects, including administration. Production, administration, and logistics are combined to achieve error-free production. Identifying and correcting errors immediately is also an important part of this quality assurance. Polished testing methods using modern simulation devices, have been verified in accordance with recognized industry standards.
Quality audits complete in just 2 hours.
Schock Metal is certified according to ISO 9001:2000. Furthermore, Schock realizes the philosophy of Total Quality Management in all company secotrs. All of the processes are being controlled very efficiently while technically highly evolved control systems guarantee the highest possible quality.
Regular customer audits and preventive actions of quality security form the basis for above-average high-quality products and permanent low error quota with the business objective of zero-defect-production.