china wholesale cheap price 30*3mm flat steel grating/iron metal deck stairs

china wholesale cheap price 30*3mm flat steel grating/iron metal deck stairs Specification of metal deck stairs 

No	Item	Description
1	flat steel	20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3,  32x5, 40x5, 50…75x8mm, etc.
2	Bearing bar  pitch	25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc.
3	cross bar	5x5, 6x6, 8x8mm (twisted bar or round bar)
4	Cross bar pitch	40, 50, 60, 65, 76, 100, 101.6, 120, 130mm or as customers’ requirement
5	Surface treatment	Hot dip galvanized, Cold dip galvanized, Painted, Powder coated,  or as customers’ requirement.
6	Flat bar type	Plain, Serrated (tooth-like), I bar (I section)
7	Material standard	Low carbon steel

Three kinds of galvanized floor grating for construction,they are Plain Style Steel Grating,Serrated Style SteelGrating and I Bar Type Steel Grating.It is three steel gratingprices.They are widely used in steel structure platforms, stair treads, sidewalks,drainages and well covers etc.   We can design and manufacture steel grating ditch cover and in customized shapes per client's requirements.   Material:ASTM A36/A1011,A569/Q235 mild steel/stainless steel Surface treatment:black/hot dip galvanized/painted or as clients‘ demand Type:platform/Serrated/I type or other special shape as clients' requirement   Product Process   We have own factory,so we can ensure the quality galvanized floor grating. There is no middle man between us,the steel grating prices is low and competitive. Hot dipped galvaning process can anti-acid,maintain free and replace free. A.S.O can produce any kinds of requirement as clients‘ demand                                     The most popular is hot dipped galvanized steel grating hot dipped galvanized metal deck stairs used in flooring, catwalk, mezzanines /decking,stair tread,fencing,ramp, dock, trench cover, drainage pit cover, maintenance platform,pedestrian/crowded pedestrian,factory, workshop, motor rooms, trolley channel,heavyloading area, boiler equipment and heavy equipment area, office buildings,apartments, train stations, department stores, hospitals, amusement parks,etc    A.S.O pay more attention on quality control. We have the professional quality inspection personnel. And we do two times inspection see below: >After welding  >After hot dipped galvanized Our factory have own zinc pool.The zinc can reach 450g/m ².It has good anti-acid and anti-rust ability.hot dipped mild steel grating Can be live a long time in outdoor! >Application It is widly used on construction project, oil project, seaport, power plant, water plant, defense project, chemical factory and so on.We promise give you a reasonable american standard steel grating prices and ensure the  outdoor steel grating stair tread weight.   FAQ   A1. What is the span of an area as it relates to bar grating dimensions?
The span is the distance between two points of grating support and is actually referred to as the length of the grating.This is also the direction of the bearing bars. A2. What is pressure locked grating?
Pressure-locked means bearing bars are locked in position by cross bar deformation instead of welding or riveted. A3. Does the band at the end of a grating panel help support the load?
Trim band carries no load and is used to improve the appearance of the product. Welding is done every 5" at the end of the panel. Banding can in fact help carry the load if welded at every bearing bar and is especially recommended for heavy duty grating. A4. How is the length and width of an area determined when quoting bar grating?
The length is the actual span of the opening (this is the direction of the bearing bars) and is multiplied by the lineal feet or "run" of the opening to calculate the overall square footage. A5. Does a shop coat of black paint protect bar grating from rusting?
Steel grating dipped in black paint only protects the product against rusting during shipping and installation. A galvanized process is required to permanently protect the grating during its life cycle.   Company Information Company name:Anping County A.S.O Metal Wire Mesh Products Co., Ltd. Area: 19980m2 No. of Employees: 120people Cartographers:5,we can design drawing as clients requirement Personnel for prepare sample:5 No. of QA/QC Inspector(s): 5 people Export Markets: Europe, South America, Australia, North America, Asia etc. Annual Revenue: USD14,724,000 Certificates: BV report, CE certificate, ISO9001 certificate, SGS certificate,IAF  certification, etc Welcome you visit our company. It only takes 3 hours from Beijing to our company.     We promise 1.15 days after receive the deposit payment. 2.We will choose high quality and low price od the shipping company. 3.Loading the goods,we will track all the way,to ensure product safety,quick to arrive at the  designated ports. 4.Company for products and accessories ,for a long time to be able to provide various products accessories at cost to the customer at any time. A.S.O professional metal deck stairs factory in anping Looking forward your inquiry!