Elastic rubber method and rigid blank holders were used to apply blank holder force with different methods. 對壓邊力的控制採用了彈性橡膠控制法和剛性直接控制法。
Elastic rubber ball acts as a volume displacer, and 4-way reversing valve provides fast reversing and secure sealing. 彈性橡膠球作為體積置換器，四通換向閥實現快速換向及可靠密封。
Elastic rubber method and rigid blank holders were used to apply blank holder force with different methods. 對壓邊力的控制採用了彈性橡膠控制法和剛性直接控制法。
Goodyear, an American, had been trying to find a way in which rubber could be made hard, nonsticky, and yet elastic. 一個名叫固特異的美國人曾經想方設法地尋找一個能使橡膠變硬不粘且有彈性的方法。
