Phone: (+91 33) 2282 7707 / 2282 1339 Fax: (+91 33) 2282 1886 / 2282 3952 E-mail: crescentfoundry@vsnl.com Gray & Ductile Iron Castings Manhole Cover and Frame (for North America) Manhole Covers and Frames (for Europe) Manhole Covers and Frames (for Middle East) Gas and Air Tight Inspection Cover Manhole Riser Rings Catch Basin Grates, Gully Gratings Tree Grate (Tree Grille) Trench Grates, Channel Gratings Bollards Water Meter Box, Valve Box and Surface Boxes Fabricated Mild Steel Products Galvanized Inlet Grates, Gully Gratings Manhole Riser Rings Galvanized Manhole Steps Plastic Products Drainage Pits Channels Water Meter Box Reinforced Concrete Accessories Unipit and Grates Other Products	Gas and Air Tight Inspection Cover (click thumbnails for larger image) We manufacture gray cast iron and ductile iron Gas and Air Tight Inspection Cover including - multi-part frame and cover, concrete infill and solid top. Gas and Air Tight Inspection Cover - Overview Available in gray cast iron and ductile iron All castings are available in ASTM A48 Class 35B Sizes available from 300 x 300 mm clear opening to 1200 x 750 mm clear opening complying with Australian standard classes "A", "B", "C" and "D" Manufactured to Australian and New Zealand standards These covers can be matched together to make "Multi-Part" cover New patterns can be developed within eight weeks
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