Tie Guanyin has excellent quality,its leaves ale thick and solid,it weighs as iron with dark and moist color,it has obvious sand green color with bright-colored red points．Its fragrance is noble-minded．long-lasting,stromg and fresh,it has a unique"lingering charm" with a sweet and fragrant aftertaste;even after 7 times infusion it still has fragrance…it can be called the king of oolong tea