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iocl.com B 31.8/B31.4 and OISD 141, Pipeline wall thickness and minimum depth of burial at river crossing and casing at rails major road

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Page 1: iocl.com B 31.8/B31.4 and OISD 141, Pipeline wall thickness and minimum depth of burial at river crossing and casing at rails major road
Page 2: iocl.com B 31.8/B31.4 and OISD 141, Pipeline wall thickness and minimum depth of burial at river crossing and casing at rails major road
Page 3: iocl.com B 31.8/B31.4 and OISD 141, Pipeline wall thickness and minimum depth of burial at river crossing and casing at rails major road
Page 4: iocl.com B 31.8/B31.4 and OISD 141, Pipeline wall thickness and minimum depth of burial at river crossing and casing at rails major road
Page 5: iocl.com B 31.8/B31.4 and OISD 141, Pipeline wall thickness and minimum depth of burial at river crossing and casing at rails major road
Page 6: iocl.com B 31.8/B31.4 and OISD 141, Pipeline wall thickness and minimum depth of burial at river crossing and casing at rails major road
Page 7: iocl.com B 31.8/B31.4 and OISD 141, Pipeline wall thickness and minimum depth of burial at river crossing and casing at rails major road
Page 8: iocl.com B 31.8/B31.4 and OISD 141, Pipeline wall thickness and minimum depth of burial at river crossing and casing at rails major road
Page 9: iocl.com B 31.8/B31.4 and OISD 141, Pipeline wall thickness and minimum depth of burial at river crossing and casing at rails major road
Page 10: iocl.com B 31.8/B31.4 and OISD 141, Pipeline wall thickness and minimum depth of burial at river crossing and casing at rails major road