Supply Of Calibrated Bhn Test Block.Calibrated Bhn Test Block.,Calibrated Bhn Test Block(3000 Kgf/ 10 Mm): 1. 260 Bhn - 5 Nos., 2. 280 Bhn - 5 Nos., 3. 300 Bhn- 5 Nos., 4. 320 Bhn - 5 Nos. (Reference Is:2281/2005 & 4132/2005) With Calibration Certificate By NablAccredited Lab. In Favour Of Chemical & Metallurgical Laboratory, Rwp, Bela