Shanghai Daetong Self-Control Equipment Co., Ltd. looi në 1996, yen ye luɔɔi de valves (valves) ye looi. "DA.TONG" ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam, ye kɔc ye gam Pneumatic corrosion resistant angle control valve, pneumatic corrosion resistant eccentric rotating control valve, pneumatic high pressure differential ball valve series products, their service life, control performance is comparable to similar imported products. Kɔmpaniɛ ee tɛ̈n yenë kɔc ya gam në luɔɔi de kä ye kek looi yiic, ku jɔl ya tɛ̈n yenë kɔc ya gam në luɔɔi de kä ye kek looi yiic në luɔɔi de kä ye kek looi yiic në luɔɔi de kä ye kek looi yiic në luɔɔi de kä ye kek looi yiic në luɔɔ Akutnhom ye ISO 14001 Environmental Management System gam; OHASA18001 tɛ̈n yenë kɛ̈ɛ̈k ye kɛ̈ɛ̈k ye kɛ̈ɛ̈k ye kɛ̈ɛ̈k China Petrochemical Group Company ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l Në run juëc cï lɔ̈ɔ̈m yiic, akutnhïïm ye wëu juëc tɔ̈ɔ̈u në luɔɔi de teknoloji, ku bɛ̈ɛ̈i yam looi, ku bɛ̈ɛ̈i yam looi, ku bɛ̈ɛ̈i Kɔmpaniɛ tɛ̈n bɛ̈n ya tɔ̈ɔ̈u, ku jɔl ya CNC lathes, CNC milling machines, advanced boring machines, grinding machines, ku jɔl ya minɛn juëc ye kek looi, ku jɔl ya minɛn juëc ye kek looi, ku jɔl ya minɛn juëc ye kek looi, ku jɔl ya minɛn juëc ye kek looi. Kä ye kek looi në luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi Shanghai Dazhong Self-Control Equipment Co., Ltd. ye kɔc lui bɛɛ̈n ya tɔ̈ɔ̈u, ye kɔc lui bɛ̈n ya tɔ̈ɔ̈u, ye kɔc lui bɛ̈n ya tɔ̈ɔ̈u, ye kɔc lui bɛ̈n ya tɔ̈ɔ̈u, ye kɔc lui