Set up in 1989, Shengping Safety Protection Locks Manufactur is an square iron padlock manufacturer and square iron padlocks supplier specialized in the manufacture of different kinds of locks. We have obtained quality system authentications as ISO9001-2000 International Quality Control System Attestation. According to many years of producing and R&D experience, we produce locks more than 100 kinds of specification with different kinds of raw materials & styles. Moreover, we can do customized work as per clients designs.