This product is “C”shape chain riveting.The product has two type standard sizes of 15GA and 16GA available for choice.The nail body diameter has two type specifications of 1.6mm and 1.8mm.The widest of “C” shape has two type daban-daban masu girma dabam na 16.9 da kuma 23.7, wanda hadu da bukatun na yin amfani da daban-daban model na gas ƙusa gun.