環鏈電動葫蘆shiyizhongqingxiaoxingqizhongshebei。huanliandiandonghuluyoudiandongji，chuandongjigouhelianlunzucheng。huanliandiandonghuluquanbuanzhaoguojibiaozhunshengchan
，jishenwaixingmeiguan，jieshinaiyong，neibuchilunquanbujingguogaowencuihuo，zengjialechilundenaimoxingherenxing，caiyongguoji**的工藝
，做工精細
，齒輪間契合嚴密。