從兵馬俑坑中出土了數(shù)以萬(wàn)計(jì)的實(shí)戰(zhàn)兵器，有刀、劍、矛、戈、戟、弓、弩、鏃等，分為長(zhǎng)兵器、短兵器、遠(yuǎn)射兵器和禮兵器4大類(lèi)。這些兵器制作精良，在鑄造工藝方面達(dá)到了相當(dāng)高的水平。

兵器中最引人注目的是一把青銅劍。歷經(jīng)2 000多年，劍表面沒(méi)有生銹，至今仍鋒利無(wú)比，光亮如新。經(jīng)鑒定，這把劍系銅錫合金，并含有10多種其他稀有金屬。劍表面有一層10～15微米的含鉻化合物氧化層，表明這把劍曾采用鉻鹽氧化技術(shù)處理。鍍鉻技術(shù)是在20世紀(jì)30年代由德國(guó)人發(fā)明的，而我國(guó)在2 000多年前就開(kāi)始在兵器上鍍鉻，實(shí)在令人嘆服。

Thousands of real weapons were unearthed from the pits，including broad knives，swords，spears，dagger－axes，halberds，arrows，crossbows，and arrowheads.The weapon can be classified into four categories：long－shafted weapons，short weapons，long－range weapons and weapons for guards of honor.They were delicately made and enjoyed a high level casting technology.

The most attractive among the weapons is a bronze sword，which still glitters in metallic luster without being rusted，though buried underground for over 2 000 years.Technical examination reveals that the sword is composed of an alloy of copper and tin and more than ten other rare metals.It is plated with a thin layer（10－15 microns）of oxidated chromium，which proves that the weapon was oxidated with chromium when it was made.The technology of chromium coating was invented by the German in 1930s，but in China chromium－coating technique was employed in the making of weapons over 2 000 years ago.It is really a wonder and compels admiration.