Wenzhou Yate professionally manufacture Stainless Steel Sanitary Circular type manhole cover,and other types manhole cover Product Name:Stainless Steel Sanitary Circular type manhole cover1)Place of origin: China2)Type: circular, square, elliptic,3)With pressure or without pressure4)Material quality: AISI304, AISI316L5)Size:400*120,430*120,450*120,500*120,600*120