名称：护管拉簧 材质：不锈钢钢丝
Description: tension spring
Materials: stainless-steel wire
STAINLESS STEEL SUBMERSIBLE MIXER
CAST IRON SUBMERSIBLE MIXER
LOW-SPEED PLUG-FLOW MIXER
FPR FAN
MAGNETIC AIR PUMP
DISC DIFFUSER
DISC STIRRING DIFFUSER
ANTI CLOGGING ROTARY MIXING DIFFUSER
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