15 GB/T 1149.7-1994內(nèi)燃機(jī)活塞環(huán)螺旋撐簧油環(huán)Internal combustion engines--Piston rings--Coil-ring-loaded oil control rings 16 GB/T 1150-1993內(nèi)燃機(jī)濕式鑄鐵氣缸套技術(shù)條件Internal combustion engines--Cast iron wet type cylinder liners--ecification 17 GB/T 1151-1993內(nèi)燃機(jī)主軸瓦及連桿軸瓦技術(shù)條件Internal combustion engines--Main and coecting rod bearings--ecification 18 GB 1576-1996低壓鍋爐水質(zhì)Water quality for low preure boilers 19 GB/T 1859-1989內(nèi)燃機(jī)噪聲聲功率級的測定準(zhǔn)工程法Determination of sound power levels of internal combustion engines noise—Quasi-engineering method 20 GB/T 1883-1989往復(fù)活塞式內(nèi)燃機(jī)術(shù)語Reciprocating internal combustion engines—Terminology21 GB/T 1921-1988工業(yè)蒸汽鍋爐參數(shù)系列ecificatio for industrial steam boiler 22 GB/T 2785-1988內(nèi)燃機(jī)氣門彈簧技術(shù)條件Internal combustion engine--Technical requirements for valve rings 23 GB/T 2940-1982柴油機(jī)用噴油泵、調(diào)速器、噴油器彈簧技術(shù)條件Technical ecificatio of rings for fuel pump, governor and injecter of diesel engines 24 GB/T 3166-1988熱水鍋爐參數(shù)系列ecificatio series of hot water boiler 25 GB/T 3821-1983中小功率內(nèi)燃機(jī)清潔度測定方法