夜夜添无码一区二区三区,亚洲理论电影在线观看,久久亚洲精品成人av,狂躁美女大BBBBBB糟蹋

KEYWORDS

Accessories, hot melt machine, maintenance parts

密封圈及密封軸封 Sealing ring and sealing shaft seal

model :“O”型

features:

Walte sealed enclosure and shaft seal characteristics:
1, seal shaft seal and "O" type sealing ring;
2, using imported Teflon material - fluorine rubber ring;
3 、 high temperature resistance, high pressure resistance, wear resistance, corrosion resistance.