Detailed Product Description

*accuracy: Din876/00 super inspection grade
*manufacture: Germany craft technic precision hand lapping
*material: China special high grade natural "jinahchin" black granite for millions of years
*quality: Taiwan design, calibrated 100% by jingstone calibration center (jcc), and are conformed to germany tuv cert din en iso9001 and iso/iec 17025 for requirment of quality management and technic specification.
*warranty: We promise that product won't deform upon normal using, and accuracy of product is conformed to the standard of germany din876/00 grade.

Reliable stability, resist to deform, rust-free, anti-corrosion, wear resistance, long life, non-magnetization, easy maintenance, surface crash or split don't influence measuring accuracy.

*granite surface plate (gn-xxxx)
*granite tri-square master (gn-t)
*granite four face square master (gn-f)
*granite straight edge master (gn-s/gn-i)
*granite parallel master (gn-p)
*granite v-block master (gn-v)
*granite measuring stand: Normal (gn-msn), fine travel (gn-msf), arm (gn-msa), universal (gn-msu)

Certificate:
*tuv cert iso9001 certification (germany)
*iso/iec 17025 accreditation (taiwan)
*germany/u. S. A. Taiwan patent