People bring their own cooker, he attaches a valve and a steam pipe, and now he gives you espresso coffee.  Now, this is a real, affordable coffee percolator that works on gas.
人々が自分の調理器をもって来て それにバルブとパイプをくっつけて たちまちエスプレッソの出来上がり まさしく手頃な値段の ガスの濾過式コーヒー沸かし器です