DIN7504k Hex Washer Head Self Drilling Screw with EPDM Washer Double Thread

    Wuxi Dipo Metal Industrial Co., Ltd was founded in 2004. It is the fastener branch of China Steel Structure Association, China Construction Metal Structure Association and China General Machine Components Association, the member of Metal Committee of China Building Decoration, and the Contract and Accredit Honoring Unit in Wuxi. It mainly produces Dipo standard components. Our company is a domestic-owned enterprise devoting itself to producing screws and nuts in such industries as steel structure, automobile, appliance, dynamo, decoration and rail transportation and hardware accessories related to them. The company has become the qualified supplier of China Railway Group Nineteen Co., Ltd., China Railway Group Thirteen Co., Ltd., China Railway Group Ten Co., Ltd., China Railway Group Five Co., Ltd., China Railway Group Three Co., Ltd., China Railway Group One Co., Ltd., China Railway Electrification Bureau Group and Shanghai Railway Bureau of China Railway. Our products are sold to those areas like America, Europe and Southeast Asia. In addition, the Chunyu products sold by our company as an agent have already got the certifications from the American Association for Laboratory Accreditation and ISO/TS16949, SGS, ISO9001, ISO14001 as well as QS9000. Dipo nuts have got good reputation in manufacturing for their best quality. Besides, the company has great advantages in the service of the hardware accessories.