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1997_API STD 677 (2nd Ed1997) General Purpose Gear Units For Petroleum, Chemical, And Gas Industry Services.pdf

API 610 (1995) Centrifugal pumps for petroleum heavy duty chemical and gas industries services.PDF

Api 661 (1992) AirCooled Heat Exchanger.pdf

Api Rp 577 - Welding Inspection And Metallurgy.pdf

API RP 582 (2001) - WELDING Guidelines for Chemical, gas -& oil industries.pdf

Api Std 527 Seal Tightness Or Pressure Relief Valves (3Rd 1991 13P).pdf

API STD 613 - Special Purpose Gear Units for Petroleum, Chemistry & Gas Ind.Service (1995).pdf

Api Std 613 (4Th 1995 73P) Special Purpose Gear Units For Petroleum Chemical And Gas Undustry Services.pdf