One hundred only the magic of the jointpreparation of a spider web, when the net weaving, the audience found that the above is actually writing a word, terrific!
一百只神奇的蜘蛛共同编制一个网,当网编织好了以后,观众们发现上面竟然写着字,了不起!
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English Name:Welding and allied processes - Recommendations for jointpreparation - Manual metal-arc welding, gas-shielded metal-arc welding, gas welding, TIG welding and beam welding of steels.