We specialized in manufacturing hardware, such as standard and special screw, roofing screw, stamping nut, stamping spring,bolts ,machining parts etc.And you can buy various of high quality of standard and non standard screws from global fasteners -kinsom in Shanghai.China fasteners.
1.Product:Baosteel raw material make sure the product good toughness and high strength,quality meets the demand of International European Union standards.
WeChat : KSpecialFasten