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Question:

What's the difference between QTZ63 and qtz630, isn't it the same kind of tower crane?

What's the difference between QTZ63 and qtz630, isn't it the same kind of tower crane?

Answer:

Should be the same series, but lifting weights are not the same
It's the same kind of tower crane, but it's only a unit of rated lifting torque. The former unit is 63 tons. M, the latter is 630 kn m. According to the latest national standard "tower crane", GB/T5031-2008 and QTZ63 are written correctly.
It's the same kind of tower crane, but it's only a unit of rated lifting torque. The former unit is 63 tons. M, the latter is 630 kn m. According to the latest national standard "tower crane", GB/T5031-2008 and QTZ63 are written correctly.

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