WT series casing standards and parameters
NO.	Standard	Description Code	Outer diameter (mm)	Inner diameter (mm)	Weight (Kg)
1	NWT	CAS-NWT-1500 CAS-NWT-3000	89.0	76.3	18.4 36.8
2	HWT	CAS-HWT-1500 CAS-HWT-3000	114.3	101.6	25.4 50.7
3	PWT	CAS-PWT-1500 CAS-PWT-3000	139.7	127.0	31.3 62.6

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