dainful expression was blatant, his lips curling into a mocking smirk. Then, with an air of nonchalance, he clasped his hands together and said, "Since the Qin Empire is unwilling to accept my Liao's...t will rust and is not conducive to heat dissipation after the gunpowder ignites. We can consider adding some steel water to it. This way, we can reduce the weight without lowering the strength and pr...