北京民族乐器厂生产了一种二胡用尼龙粘扣附加托,在演奏中起到了良好的效果。但是这种附加托的粘扣面是平的,因此,只能适用于有一个平坦底面的底托的二胡,而对于很多的底托底面凹进去的产品则不能用。为此,我考虑试制了另一种适用于后者的附加托(见右图)。这种附加托用硬木制作,其 Beijing National Musical Instrument Factory produces a kind of erhu with Velcro additional support, playing played a good effect. However, this additional carrier has a flat hook and loop fastener so that it can only be applied to the erhu with a flat underside but not to many recessed products on the underside of the pad. To this end, I consider trial production of another additional support for the latter (see right). This extra tray is made of hardwood