The manufacture of extra-large gongs is especially challenging. Because they are bigger than any brass stock that is generally available, the platter can only be made by welding two pieces of brass together. These gongs must be pounded tens of thousands of times to ensure that the weld seam is totally reliable, and the process takes several days.
尤其是特大面的鑼，因為尺寸超過一般銅片大小，鑼面必須以兩塊銅片焊接而成，更需要落鎚好幾萬次，搥上好幾天，使得焊接的部份完全密合。