Additional components such as alloysheetsteel strip covers are available to protect the linear guidance systems and drive unit.
额外的元件，如合金板材带钢可覆盖以保护线性制导系统和驱动装置。
2
To create the dark metal finish on the two upper levels, these blocks are clad with Galvalume - a type of steelsheet that is coated with an aluminium and zinc alloy.
为了在上两层创建黑色的金属饰面，这些体块都包裹了铝锌合金镀层——这是一种镀有铝锌合金的钢板。
3
Galvanized by galvanized or cold-formed alloysteelsheet roll forming, cross-section determined in accordance with the corresponding national norms.