7 liters special price (original accessories(7升特价款（原厂配件) 7 liters digital display (original accessories(7升数码显示（原厂配件) 7-liter digital display (high-end accessories(7升数码显示（高档配件) 7-liter digital display (high-end accessories + smoke vent(7升数码显示（高档配件＋排烟管) 7 liters copper water tank (upgraded accessories + smoke vent(7升铜水箱（升级配件＋排烟管) 8 liters copper water tank (upgraded accessories + smoke vent(8升铜水箱（升级配件＋排烟管) 10 liters copper water tank (upgraded accessories + smoke vent(10升铜水箱（升级配件＋排烟管) 6-liter strong row (copper water tank + smoke vent(6升强排（铜水箱＋排烟管) 8-liter strong row (copper water tank + smoke vent(8升强排（铜水箱＋排烟管) 10 liters strong row (copper water tank + smoke vent(10升强排（铜水箱＋排烟管) 10 l balance type (copper water tank + smoke vent(10升平衡式（铜水箱＋排烟管)

liquefied gas(液化气) natural gas(天然气)