自沙

有点牛逼的赶脚。。。Application range ............................................................................................................ 12 Approval of casting suppliers .......................................................................................... 13 Mechanical properties ..................................................................................................... 24 Chemical composition ..................................................................................................... 25 Micro structure ................................................................................................................ 36 Conditions of delivery ...................................................................................................... 37 Surface condition and cut defects ................................................................................... 48 Production inspections .................................................................................................... 59 Acceptance certificates ................................................................................................... 710 Pertinent documents ....................................................................................................... 8Annex A……………………………………………………………………………………… 9 - 241 Application rangeThis quality guideline is valid for the purchase of cast turbocharger components like com-pressor volute, gas outlet casing or turbine inlet casing, made of ferritic nodular cast iron.2 Approval of casting suppliers