During steel ball processing, resin bond wheel was used to grinding to replaced a processing way of cast iron plate and grinding material, so the steel ball quality was raised greatly.
钢球加工过程中采用树脂砂轮进行研磨，代替了铸铁板加磨料的加工方法，使钢球质量得到很大提高。
2
Phosphoric acid was selected as bond to make phosphate rock powder into ball material.
研究选用磷酸作粘结剂，使碎磷矿粉粘结成型。
3
Providing overnight amodation in one of the hotels rooms as well as access to the hotel's swimming pool and 24 hour facilitates means the BondBall will be more of a mini break than a night out.