Nyenzo : SGCC , SGCH , DX51D+ZKawaida: AISI,ASTM,GB,JISCheti : ISO9001 , SGS , SAI , BV , nkUnene : 0.12mm-0.7mm, Uvumilivu wa unene:±0.02mmUpana: 600mm-1250mm, Uvumilivu wa upana:-0/+3mm