Beijing YHR ISO9001 Takaddun shaida Beijing YHR ISO14001 Takaddun shaida Beijing YHR ISO45001 Takaddun shaida Tangshan YHR ISO14001 Takaddun shaida Takaddun Tangshan YHR ISO9001 Takaddun Tangshan YHR ISO45001 Lasisin Samar da Tsaro NSF_ANSI 61 Takaddun shaida High-Tech ciniki shahadar