On PLAN ASW:
They have no long range ASW weapons, only some rockets and the Yu-7, a copy of the early Mk-46 torpedo.(Isn't said that the early Mk-46, which the Yu-7 came from, has a depth problem?)
The Cy-1, a missile-torpedo designed to be able to be fired from the C-801/2 canister, failed, and there are rumors that the CY-2 is being developed.
The sub chasers are fast enough in most cases to chase modern subs, but are in most areas obselete.
The only fixed wing that China has that can be used against subs is the SH-5, and those are being phased out without a successor.(
)
Naval helos consist of the Good old Ka-28, the indigenious(quesionable) Z-9C(too light and incapable) and the Z-8 (Too few, not compatible w/ destroyers due to size, being produced?)
The Kilos has been fitted w/ MANPADS, SA-N-8 I think, but they are absent on those of PLAN.