Translation of Schwerindustrie

Mr. Chang informed me that you have a customer that requires similar applications to what my customers have here in Switzerland. I am planning my next trip and I will consider visiting you too.
They wanted to know everything about relationships in Switzerland. One of the asked me of how guys propose friendships to girls. I did not know what she meant and explained that we were very informal.
My wife joined me two hours later and everybody went to breakfast. The plan for the day was to visit a cave on one of the islands. We took smaller boats to get there as the ship was too large to approach the island.