国产又粗又猛又爽又黄的黄牛视频-欧美日韩精品网址-国产成人麻豆h视频在线观看-蜜臀av区一二三爽免费播放-久久久伦理精品-99精品资源在线视频-伊人久久大香樵-久久人妻人人爽-性欧美少妇煌妇喷水,麻豆免费在线观看视频网站,天天射天天干天天要,91精品国自产拍老熟女露脸

\r各種滾筒均可選用碳鋼和不銹鋼材質，不銹鋼有201#、304#、316#等<\/span><\/span>\r<\/p>\r

\r滾筒直徑選擇：<\/span>25mm<\/span>、<\/span>32mm<\/span>、<\/span>38mm<\/span>、42mm、<\/span><\/span>50mm<\/span>、<\/span>57mm<\/span>、<\/span>60mm<\/span>、<\/span>76mm<\/span>、<\/span>89mm<\/span>。<\/span>   <\/span>
\r<\/span>滾筒材質選擇：碳鋼鍍鋅、碳鋼鍍鉻、碳鋼包膠、<\/span>PVC<\/span>、不銹鋼、無縫管等。<\/span>
\r<\/span>滾筒類型選擇：無動力輥筒、單鏈輥筒、雙鏈輥筒、“<\/span>O<\/span>”帶輥筒、錐形輥筒、槽型輥筒。<\/span>
\r<\/span>滾筒固定方式：彈簧壓入式、內牙軸式、全扁榫式、通軸銷孔式<\/span><\/span>\r<\/p>\r

\r
\r
\r
\r
\r<\/span><\/span>\r<\/p>\r

\r<\/span><\/span> \r<\/p><\/div>\r