Generally Conforming to IS 7381-1986

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  HEXAGONAL & BIHEXAGONAL
  PROD. NO.	FIG. NO.	A	B	C	ΘD	ΘE	A/F	WT. GMS
  C19	–	–	–	–	–	–	–	–
  C21	–	–	–	–	–	–	–	–
  C22	1	50	30	20	33.0	36	22	215
  C24	1	50	30	20	35.0	36	24	210
  C27	2	51.5	–	–	38.0	–	27	220
  C28	3	52	21	31	40.0	36	28	235
  C29	3	52	21	31	40.0	38	29	240
  C30	3	54	21	33	42.0	38	30	265
  C32	3	56	21	35	44.0	38	32	300
  C34	3	58	22	36	46.0	38	34	320
  C36	3	58	20	38	50.0	42	36	395
  C38	3	60	20	40	56.0	45	38	450
  C41	3	64	24	40	56.0	45	42	535
  C42	3	64	22	42	58.0	45	42	590
  C46	3	68	21	47	62.0	48	46	685
  C50	3	72	24	48	68.0	48	50	800
  C55	3	76	26	48	74.0	48	55	955
  C60	3	78	30	48	78.0	48	60	910
  C65	3	85	30	55	86.0	48	65	1570
  C70	3	85	30	55	91.5	48	70	1680