15 GB/T 1149.7-1994内燃机活塞环螺旋撑簧油环Internal combustion engines--Piston rings--Coil-ring-loaded oil control rings 16 GB/T 1150-1993内燃机湿式铸铁气缸套技术条件Internal combustion engines--Cast iron wet type cylinder liners--ecification 17 GB/T 1151-1993内燃机主轴瓦及连杆轴瓦技术条件Internal combustion engines--Main and coecting rod bearings--ecification 18 GB 1576-1996低压锅炉水质Water quality for low preure boilers 19 GB/T 1859-1989内燃机噪声声功率级的测定准工程法Determination of sound power levels of internal combustion engines noise—Quasi-engineering method 20 GB/T 1883-1989往复活塞式内燃机术语Reciprocating internal combustion engines—Terminology21 GB/T 1921-1988工业蒸汽锅炉参数系列ecificatio for industrial steam boiler 22 GB/T 2785-1988内燃机气门弹簧技术条件Internal combustion engine--Technical requirements for valve rings 23 GB/T 2940-1982柴油机用喷油泵、调速器、喷油器弹簧技术条件Technical ecificatio of rings for fuel pump, governor and injecter of diesel engines 24 GB/T 3166-1988热水锅炉参数系列ecificatio series of hot water boiler 25 GB/T 3821-1983中小功率内燃机清洁度测定方法
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