av动漫在线观看无遮挡,一个人看的www在线视频,中文字幕丰满乱子无码视频,久久精品国产亚洲AV夜色九虎,无码精品丰满熟妇五t,又黄又爽无遮挡国产,亚洲AV无码片一区二区三区,国产成人欧美亚洲日韩图片

特點 Features

• 采用工程塑料材質(zhì)使產(chǎn)品更加輕便，運行起來更加順暢
• 采用全封閉形式可防止異物進入，可以更好的保護電纜和管線
• 蓋板可開合的設計方式使電纜及管線的安裝和維護操作起來更加簡易

• Proper for more than twice length of free span.
• Made of engineering plastic for the light weight.
• Openable covers procide convenient installation and maintenace.
• Skates enable longer operation life and worn skates can be replaced covently.
• Exactly measured guide channels should be installed for a long term performance and excellent movements.

需要更多詳細參數(shù)請下載產(chǎn)品手冊