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                                        Chapter 195
                                
                                                                                        
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... ple a very fragile feeling, and even the idiom such as a plate of loose sand was born from this.
But when the density of sand and gravel reaches a certain level, not only is it not inferior to steel cement in terms of hardness, it can even be comparable to diamonds!
Of course, speaking of Crocodile's physical level, it is naturally impossible for him to know the theoretical knowledge that the greater the density of the sand and gravel, the stronger the hardness, and there is no suc ...
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