... Delivery:7-30days 4.Availability:20,000tons/year "Wanjie" stainless steel grating has the characters of Light weight, heavy-duty, large ... usually applied to Power plants, chemical plants, oil refineries, steel mills, paper mills, mechanic plants, cement plants, municipal engineering ... steel grating L-- pressure-locked C-- socket-weldingBearing bar centers:15-30, 40, 60, 80, 90 mm etc. with 30, 40 ...