Astra Michael Diamond Tools Company Private Limited · Astra Diamond Tools Co Pvt Ltd · Astra Metalloys Private Limited · Astra Safety Control Systems Private Limited · Keshavam Diaabrasives Private Limited · U27310 Ap2011 Ptc073972 · U99999 Ap1981 Plc003113 · U74999 Ap2008 Ptc057616 · U32106 Ap2006 Ptc049448