I have seen similar information, but it makes little sense to me. The Russian (Soviet) SOVREMENNYY’s switched to lengthened Moskit-M launch tubes from Hull 15 (BESPOKOYNYY). As HANGZHOU and FUZHOU were laid down as Hulls 18 and 19 for the Russian Navy, they would naturally have the same tubes, just as the Progress factory would have switched entirely to Moskit-M by the time the two ships were delivered to China in 1999-2001.
well, what i got is from what the Russians told kanwa and JDW. They got to 240 km with MBE and that was after they used lo-hi-lo flight profile and upgraded all the components (engine, fuel, material). You think they get to 170 km while still using the same flight profile and same material as the original by just making it a little longer?