A.等于釬料熔點(diǎn)但低于母材熔點(diǎn) B.高于釬料熔點(diǎn)但低于母材熔點(diǎn) C.高于釬料熔點(diǎn)并等于母材熔點(diǎn) D.低于釬料熔點(diǎn),高于母材熔點(diǎn)
A.0.9~1.0 B.1.0~1.2 C.1.2~1.3 D.0.8~0.9
A.ZG270-500 B.HT300 C.QT450-10 D.KTH300