According to the factors of operation pressure, medium and temperature, the specification and outside dimension of hollow metal O-ring, the detailed dimension of sealing groove were determined.
设计时应根据操作压力、介质和温度等条件确定金属空心o形圈的外形尺寸和规格，然后进行矩形槽的设计。
2
The flat face and the side face of the plastic hollow brick are provided with a sealing groove, a sealing strip and through holes; the plastic hollow brick can be formed once by pressing.
其构成是塑料空心砖的平面、侧面设有密封槽、密封条、通孔，一次压制成型。
3
Hollow shaft type high pressure cooling system is used to solve the problem in deep drilling, as well as gun-drill with open groove, proper cutting consumption and single tool withdraw are applied.