crafting. Even intricate parts like rifling, which require exceptional precision, are only capable of being made by Song Yingxing himself. Therefore, this level of efficiency is already the utmost ef...Chapter 529 The Most Despicable Businessntle and elegant, with some air of refinement. However, his complexion is pale and he doesn't look very healthy.At this moment, he was frightened and flustered. He turned his head to look at the young...