Non-Standard Special Nuts (CH-NUT-012) Chuanghe Fastener Co., Ltd. Base Info Model NO.:CH-NUT-012Trademark:chuangheSpecification:ISO, GB, JIS, ANSI, DIN, BSW, GOSTOrigin:GuangDong chinaHS Code:7318 Description Pre:Quick Coupling (F) Next:Sanitary Square Manhole Cover