1, before order, please read this manual carefully, clearly mark thesize, type, wrapping form, quantity and product surface treatment state. If need our company layout design, please provide the required coverage area of the full plan, structural drawings, steel structure three-dimensional picture and node picture, and pointed out that: 

◆ All sizes and the surrounding boundary conditions;
◆ support steel beam model, section size and location, channel opening direction.

◆ the location and size of guard plate, former guard plate and shaped interface
2, indicate the type and quantity of installation folder, usually each grating install at least four sets of folders;
3, indicate the stepping plate model, size and quantity, and whether the surface state and side fillet;   
4, indicate product and surface treatment (hot dip galvanized, painted or no treatment )  
5, grating area is calculated by drawing max external dimension, including the opening or gap, and so on.
6, indicate the product delivery time, place of delivery and mode of shipping