Features: ◆ appearance: simple lines, silver exterior, modern ideas ◆ Best drainage: leakage area of ??83.3%, more than double cast iron. ◆ Hot-dip galvanizing: rust-proof and strong, 30-year free maintenance and replacement. ◆ High strength: strength and toughness is much higher than cast iron, can be used for docks, airports and other large span and heavy load conditions. ◆ many varieties: meet different environment Zhaoqing steel grating trench cover, load, span size and shape to provide the desired manufacturing and shape steel grating trench cover, according to the customer. Treads ladders ladders steel grating treads are non-slip and side plus a combination of deep-processed products. Mainly used as a stepping Dongguan ladders steel grating trench cover, it is usually referred to as stair treads. : Treads need to manufacture a variety of sizes to match the corresponding stairs, but the economic and security point of view, we recommend that you use the following specifications: t325 / 30/100 (applicable treads is not greater than a width greater than 215mm 305mm) t255 / 30/100 ((applicable treads is not greater than a width greater than 215mm 305mm Shenzhen steel grating trench cover, 炳辉 network industry (certified), steel grating trench cover by Foshan Nanhai 炳辉 industry Manufacturing Co. The company offers. Nanhai District of Foshan City 炳辉 industry Manufacturing Co. (fsbhwy.cn) Guangdong Foshan, a leader in the wire mesh over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In Bing Hui network industry leadership with the staff warmly welcome all inquiries negotiations to create Bing Hui network industry a better future.