Shenhai Explosion-Proof
Tuam Tshoj, tawg-pov thawj pov thawj adheres rau lub GB3836 hluav taws xob explosion-proof txheem thiab yog mandatory. Daim ntawv pov thawj tshua valid rau 5 Xyoos.
Thoob ntiaj teb, explosion-proof certifications entail ib one-time accreditation uas yog valid indefinitely. tiam sis, Lawv tsim nyog ib xyoos ib zaug rau-qhov chaw ntsuam xyuas los ntawm engineers los ntawm lub cev muab ntawv pov thawj, nrog nws cov lus los ntawm ib tug nqi tes txhua xyoo.