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Introduction on HAC Hearing Aids

Introduction on HAC Hearing Aids

HAC is short for Hearing Aid Compatibility which test electromagnetic compatibility of mobile phones and hearing aids. It is divided into two parts RF and T-coi...

Introduction to China’s Textile Technical Standards and Regulations

Introduction to China’s Textile Technical Standards and Regulations

China's standards are divided into two categories: mandatory standards and recommended standards according to their attributes. Mandatory standards have the nat...