non-hermetic screw pump 非密闭式螺杆泵 ; 非严密封闭式螺杆泵
non screw universal coupling 万向联轴器
outside screw non-bonnet 外螺纹无阀盖
non-hermetic screw pump coupling 非密闭式螺杆泵联轴器
screw-down non-return valve 截止止回阀
inside screw & non-rising stem 内螺纹非升杆
non-return screw 止逆螺杆
ISNS Inside screw&Non-rising Stem 内螺纹非升杆
non-return screw head 止逆螺杆头
non-axis screw cooler 无轴螺旋冷却机
Owing to the pump structure and side clearance between screw, it can transport non-lubricative medium.
由于这种泵的结构和螺杆间存在的侧间隙，它可以输送非润滑性介质。
This company mainly produces various series of drilling screw with tapping screw dry wall screw fiber board screw self - tapping screw machine screw all kinds of non-standard goods.
公司主要生产各系列的自钻自攻螺钉、干壁钉、纤维板钉、自攻螺钉、机螺钉及各种非标准产品。
From falls screw jack's thread non-self-locking action, is loaded with the brake.
自降螺旋千斤顶的螺纹无自锁作用，装有制动器。
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