supply of air compressor (with motor), reciprocating type, three cylinders, two stage, horizontal type, pipe ventilated, directly driven.air compressor (with motor), reciprocating type, three cylinders, two stage, horizontal type, pipe ventilated, directly driven.,air compressor (with motor), reciprocating type, three cylinders, two stage, horizontal type, pipe ventilated, directly driven through an extended crank shaft with oil pump, oil filter etc. with working pr essure 7 kg per sq.cm, free air delivery 1000 lpm & above, confirming to rdsos specification no. 70-bm-4 1, rev. march -79 or latest. acceptable make/model : trc- 1000 dcm of m/s elgi make or 3 hc -55 of m/s k pc make. [ warranty period: 30 months after the date of delivery ] ]