Deng materialis a keraklan dang gagamitan king pamangawang plais ila pin deng samut a bakal (stell alloys), anti ing Vanadium at/o Chromium, ba yang sikan ing samut (alloy strength), at e gad mangalawang ing kasangkapan. Keraklan, maki talanan lang insulated o maki takap deng plais, ba lang mas malaguang talnan detik, at bang lisian ing pamandalan ning kurienti.