Procurement Notice steel grating trench cover: the trench cover may also be called trench cover, floor grid gate, to the grid plate, drain cover, gutter cover, made of low carbon steel Q235, by steel grating made of. Trench cover production is in accordance with quality standard steel grating YB / T4001-2007 and hot-rolled flat steel GB704-88 ordinary level standard petrochemical platform trench cover, galvanized the implementation of GB13912-92 standard, flat center to center spacing whether the agreed value, usually is 30mm, 40mm, 50mm width of one meter at the same time, it should be 34 flat. Buyers in the procurement of steel grating trench cover and flat iron to note the number and thickness of the flat iron. Air Products Co., Ltd. Hebei gold mesh scientific research, production, sales and service as one of the galvanized gutter cover, steel grating over the years to the production and R & D, advanced equipment, strong technical force, with mature technology and rich steel grating production and installation experience. The introduction of advanced professional CAD layout design system that uses the internationalization of production management, products and services in line with ISO9001 international certification standards for municipal engineering trench cover, selling domestic market, praised by users, excellent after-sales service system, superior quality, the most competitive price and the fastest delivery, willing to establish good business relationship with new and old customers, mutual benefit trench cover, sincere cooperation for a better future! Common Specifications flat steel trench cover Specifications: 20 × 3,25 × 3,30 × 3,40 × 3,50 × 3,30 × 4,40 × 4,50 × 4,25 × 5,30 × 5,32 × 5,40 × 5,50 × 5 (mm) crossbar Specifications: crossbar using twisted steel, diameter is generally 6mm, 8mm flat center spacing: 30,40,60mm crossbar center spacing: 50,100mm surface treatment: hot dip galvanized, painted gold mesh Hebei Airlines Co., Ltd. specializes in producing all kinds of trench cover, welcome to order. Petrochemical platform trench cover trench cover _ _ Hang gold grating by Hebei Airlines Golden Screen Products Limited. Gold mesh Hebei Airlines Co. (www.hbhangjin.com) strong, credible, Hebei Hengshui wire mesh industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Air gold mesh and you hand into the brilliant, for a better future!