... fertilizer facilities and electricity plant facilities, stainless steel seamless pipes GBl3296-9l for boiler and ... 95 of 20G, 20MG, 25MG, 15MoG, 20MoG; Special pipes for fertilizer of 10G, 20G, Q345, Q390 ... , 35, 45, 40Mn2, 45Mn2, 27SiMn, 20Cr, 40Cr, 20CrMo, 35crMo, 38CrMoAl, 50CrV, 30CrMnSiPipes for feeding ... also deputize dealing in valves, angle-steel, groove-steel and other well-known profiles, and ...