Elon Musk (CGTN Photo)

When a user mocked China's failed rocket launch this week, visionary billionaire Elon Musk hit back on Twitter, saying "China manufacturing quality is excellent."

After the failed launch of China's latest heavy-lift carrier rocket, the Long March-5 Y2, on Sunday, the SpaceX CEO said that he knows the feeling.

"Sorry to hear about China launch failure today. I know how painful that is to the people who designed & built it," Musk tweeted.

But others were not as sympathetic. One Twitter user from India wrote: "Well what else can you expect from Made in China things?"

"Actually, China manufacturing quality is excellent. Among other things, that's where iPhones, many Android phones & most laptops are made," Musk tweeted back.

Many people applauded the business tycoon.

A Twitter user "Innie Ceres" said: "The China of 20 years ago is not the same as the China of today. Made in China is no longer a sign of bad quality."

"I agree ... China is going places. They have plans ... goals ... big aspirations. We should try that again. The USA I mean," another user called "ianZ" tweeted.

After two aborted attempts and a three-day delay, SpaceX launched a commercial communications satellite into space using a Falcon 9 rocket on Wednesday, its third flight in 12 days. The launch from its LC-39A launch facility at NASA's Kennedy Space Center also marked the 10th of SpaceX's more than 20 launches planned this year.

Last year, the company completed eight successful launches before an explosion during routine ground testing temporarily halted Falcon 9 launches.