型號: GY-N7/1 

牙紋尺寸: 1/4" 5/16",3/8",M6,M8,M10

英製管徑: 5/8"~1-7/8"

公製管徑: 20mm,30mm,40mm

材質: 鉻鉬鋼鐵 (CR-MO STEEL) /白鐵 (STAINLESS )

MADE IN TAIWAN