[Offer to Sell]

steel stair spine

Basic Specifications for Spine:
1. Material: Q235 carbon steel
2. Superficial treatment: static electricity spurt or stoving vanish
3. Color: milky white, silver, black
There are generally five series of modular staircases spine we could make:
spine for spiral staircase;
single tube spine;
bottling spine;
twin-tube spine;
square pipe stringer spine;

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