Product Description The trench cover is a trench (well) cover made of steel grating. There are a variety of models to choose from to suit different span loads and requirements. It is widely used in different places such as municipal roads, garden facilities, residential quarters, schools, stadiums, etc. According to different applications, the surface of trench (well) cover plates of different specifications and models can be hot-dip galvanized, cold-galvanized (electroplated) or untreated. Materials Q195, Q235 ,Q235B / 304 316 Stainless Steel Bearing Bar 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc; I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc US standard: 1' ' x3/16' ' , 1 1/4' ' x3/16' ' , 1 1/2' ' x3/16' ' , 1' ' x1/4' ' , 1 1/4' ' x1/4' ' , 1 1/2' ' x1/4' ' , 1' ' x1/8' ' , 1 1/4' ' x1/8' ' , 1 1/2' ' x1/8' ' etc Bearing Bar Pitch 12.5, 15, 20, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc Twisted Cross Bar Pitch 38.1, 40 50, 60, 76, 80, 100, 101.6, 120mm, 2' ' & 4' ' etc Steel Grade ASTM A36, A1011, A569, Q235, S235JR, S275JR, SS304, Mild steel & Low carbon steel, etc Surface Treatment Black, self colour, hot dip galvanized, painted, spray coating Grating Style Plain / Smooth, Serrated /teeth, I bar, serrated I bar Grating Standard China: YB/T 4001.1-2007 USA: ANSI/NAAMM(MBG531-88) UK: BS4592-1987 Australia: AS1657-1985 Japan: JJS Our Advantages Hot DIP galvanized steel grating has three kinds of steel gratings, they are Plain Style Steel Grating, Serrated Style Steel Grating and I Bar Type Steel Grating. -Plain Type -One of the most widely used steel grating . Available for flooring , sidewalk , drainage pit cover , stairtread . etc -Serrated Type-Better non-skid property safety comparingto plain grating -Bar Type-Lighter , more economical and paraticalz comparing to plain grating. Product Application They are widely used in steel structure platforms, stair treads, sidewalks, drainages and well covers etc. We can design and manufacture standard steel grating and in customized shapes per client's requirements. Company Profile Packaging & Shipping FAQ Q1: Do you provide sample? A1: The samples are provided free, but the customer need to pay the postage. After the customer place order, we will deduct the postage from the payment Q2: How can we guarantee quality? A2: Always a pre-production sample before mass production; Always final Inspection before shipment; Q3: What is your terms of payment ? A3: 30% T/T in advance ,balance before shipment. Q4. What is delivery times? A4:This depends on the product. Typically standard products are delivered within 20 days. The delivery time of the special products is according to the time of setting up of the tooling. Q5:Can you provide OEM services? A:We support customized logos and can design and manufacture standard steel grating and in customized shapes per client's requirements.