Wang An-fu, who makes solid glass sculpture, points out that you can melt glass and mix it together without leaving any flaws or marks, which differs from other materials like pottery clay, which leave marks.
從事實心雕塑創作的黃安福指出，玻璃可以燒融密合在一起，完全不留痕跡；不像陶或其它材質會留下痕跡。