Original sentence: Miramar slides called "Blizzard" (previously , "Green Shark") and "Typhoon" (previously , "Blue Whale").They got replaced in 2018 and 2019 with new slide tubes build by Austrian manufacturer Aquarena, on a slightly altered alignment.Those slides were the first slides and the oldest, constructed in the 1990s by Dutch manufacturer PPK Promoplast
Edited sentence: Miramar has those famous slides called "Blizzard" (Grüner Hai) and "Typhoon" (Blauer wal).Their track has been changed slightly.These are the first slides and the oldest, build in the 90's by dutch manufacturer PPK Promoplast.They got replaced in 2018 & 2019 with new, beautiful and colorful tubes build by austrian manufacturer Aquarena