Add punctuation: 3 Strong and steady packing carton packing bubble paper packing
A: 3) Strong and steady packing: carton packing / bubble & paper packing

Add punctuation: For reliable and longterm results it is recommended that you take this item for at least 2 months
A: For reliable and long-term results, it is recommended that you take this item for at least 2 months.

Add punctuation: In 1900 because of his dislike of working with Mach Boltzmann moved to Leipzig but here he became a colleague of his strongest scientific opponent Wilhelm Ostwald
A:
In 1900, because of his dislike of working with Mach, Boltzmann moved to Leipzig but here he became a colleague of his strongest scientific opponent Wilhelm Ostwald.