Jiangsu Rainbow Heavy Industries Co., Ltd. 

The TUV-SUD (China) ISO3834 team carried out an audit to RHI, and concluded approval to RHI against ISO3834 certification.

The audit team share and exchangedopinions based on communication as well as access to documents, site inspection of the welding control procedure. The TUV-SUDrecommendRHI to be certified by ISO3834.

RHI shall take this audit as an opportunity to keep improvingof the quality, to provide customers with quality products.