91亚洲精品久久久蜜桃网站,免费A级毛片无码A,成人aⅴ视频免费观看性视频,中文字幕精品亚洲无线码VR

冠航SKF-A型3t鋁合金手拉葫蘆

機體外殼采用鋁合金材質(zhì)，防磁，有效減輕自身重量。

全封閉結(jié)構(gòu)防腐蝕、防塵、防水。

對稱排列式同步齒輪，高精度，高韌性。

機械負荷式制動裝置，雙重棘爪彈簧，耐用性，安全性倍增。

限位擋板重物下降時作為停止極限以阻止過低發(fā)生的事故。

The body is made of aluminium alloys,antimagnetic,reduce itseld weight.

Total-enclosed cover,anti-corrosion,dust-proof and water-proof.

Symmetric,synchronous gear is high precision and tenacity.

Two spring pawls as the braking system,Make durability and safety doubly.

Position limited plate device can prevent goods to low.