The top 10 Explosion-Proof Distribution Box manufacturers in China for 2026 are: Zhejiang Tengxuan Explosion proof Electrical Appliance Co., Ltd, Nanyang Zhongtong Intelligent Technology Group Co., Ltd, Hengshui. KAIWEI Flameproof Explosion-proof Control Box (BXK/BJX) is made in Shanghai, suitable for petroleum, chemical, offshore oil platforms and other hazardous environments, applicable to Zone II explosive gas, Zone 21/22 explosive dust atmospheres, for indoor & outdoor use. was founded in 2004 and headquartered in Shanghai. As a high-tech enterprise, Kaivei specialized in R& D and production of industrial sealing system and robot foaming equipment. Applicable to Zone 1 and Zone.