floor drain 1.ISO9001:2008 quality systems 2.4 running lines. 3. Delivery:7-25 days 4.top 100 companies. floor drain is made of steel grating , with a variety of models to choose for different load and span requirements. floor drain mterial: 1, flat steel Material, Q235 or stainless steel.the common specifications are, 20 * 5,25 * 5,25 * 3,32 * 5,32 * 5.40 * 5.40 * 3,50 *5,65*5,75*6,100*8,100*10, ...