Turn the pump shaft by hand to see if it turns flexibly.
用手转动泵轴检查其是否活络。
They can be cylinder shaped container or a manual hand pump.
它们可能是柱状的容器，或者手动泵。
Sell: leather rope, hand, knee pads, pump seat cushion protective equipment.
自产：皮绳、护手、护膝、打气筒座垫等防护用品。
The system consists of two (2) separate "bottle" jack cylinder with integrated manual hand pump.
包括2套瓶式千斤顶并附带手动油泵。
CYL hand pump compact structure, beautiful style and generous, easy to use and reliable.
CYL手摇泵结构紧凑，式样大方美观，使用方便可靠。
CYL hand pump compact structure, beautiful style and generous, easy to use and reliable.
CYL手摇泵结构紧凑，式样大方美观，使用方便可靠。
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