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Roj Strut rau Sab Nraum Zoov Canopy Rooj ZaumRoj teeb rau sab nraum zoov toj roob sawv saum txaj (9) Khoom muag khoom: Kev tsim cov qauv rau kev siv: D = raj diameter d = piston qws taub S = stroke L = tag nrho qhov ntev (qhov chaw nruab nrab
Ua ib feem ntawm cov rooj tog tsev zoo tshaj plaws roj hlav thiab cov khw muag khoom nyob hauv Suav teb, peb lub koom haum kuj txhawb nqa kev pabcuam. Thov koj xav tau dawb cov lag luam wholesale tej khoom pheej yig hauv vaj tsev ntawm lub caij nplooj ntoos hlav thiab tuaj yeem tau txais cov qauv dawb ntawm peb.

