Burton Corporation looi në 1953, ku a tɔ̈u kɔc 700 ye luui pinynhom ëbën. Berdong Enterprises (Shanghai) Co., Ltd. (www.hakuto-vacuum.cn) ee luui në semiconductor equipment, electronic parts processing, sales ku jɔl ya luɔɔi kɔ̈k peei, ku akutnhom de kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye k Berdong Company ee tɔ̈u në bɛ̈ɛ̈i dït yiic: Beijing, Suzhou, Guangzhou, Shenzhen, Chengdu ku Xiamen. Shanghai Betong Vacuum Products Business Division, ye kɔc juëc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye k Shanghai Betong agent brand includes: Germany Pfeiffer full range vacuum products, US KRI ion source, US Brooks Polycold refrigerator, US HVA vacuum valve, US inTEST (Temptronic) high speed temperature cycle tester, ion etcher, vacuum coating system and supporting vacuum parts etc. Shanghai Beldong ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan cɔl a ye raan A ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈