Size:435*335, 530*430, 635*525 Standard: 3A/DIN/SMS/ISO Applications: Beer, dairy, beverage, pharmacy etc. Product name: Elliptical manhole cover Material quality: AISI304, AISI316L Specification: φ435*335, 530*430, 635*525Standard: 3A/DIN/SMS/ISO Applications: Beer, dairy, beverage, pharmacy etc.