วันที่ 2 พฤศจิกายน 2018

Introduction At the factory, with our assistance, stands have been developed and implemented for the balancing of assembled rotors in high-speed vacuum pumps. These rotors must meet stringent quality requirements for balancing, adhering to the first-class standards as per GOST 22061-76, given that their operating frequency ranges from 42,000 to อ่านเพิ่มเติม