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Product Name: cement mortar lined steel pipe internal anticorrosive steel pipe
Specifications: 2020 x 18 x 12000mm
Coating level: specially reinforced type
Technical indicators of anticorrosive coating:
Deviation of lining thickness: mechanical 15mm, deviation -3mm ~ +4mm manual 17mm, deviation -3mm ~ +4mm
Surface roughness: gap less than 2.0mm
Surface roughness: smooth and grit free.
No more than 5 cm 2 holes in surface defect, no more than 5 cm 2 holes in surface defect and no greater than thickness tolerance in depth of a single defect.
The empty drum area should not exceed 400cm2