QBH Technology Development Co., Ltd. is an innovative and high-tech enterprise, which is specialized in R&D, manufacturing, sales of industrial borescopes and providing OEM/ODM service, comprehensive solutions for automotive intelligent instruments. and YHF(Yonghengfeng)  is the parent company of QBH.

QBH was established in 2000, equipped with fist-class facilities, professional staffs, strong RD team and excellent technical capability. After years’ development with precipitation technology, QBH has developed into one of the most professional manufactures of borescope with biggest production capacity of industrial snake tube in the world.