亚洲熟女女同中文字幕_亚洲日本一区二区三区不乱码_国产亚洲精品综合在线网站_线观看国产精品视频

WQDB-K8 Multi-point pneumatic pump is introduced from WOERNER(Germany).its struxture compact,working reliably and matched with oil level monitor.This pump composed by cylinder,pump and storage drum,make use of the reciprocating movement of the piston to push 5 plungers of pump to provide grease.Every plunger has its outlet port,the number of port (otherwise the plunger)