HUNAN MEGA DRILLTECH CO., LTD. |
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Forsun manufactures Metric Casing and Flush-Jointed Casing and
Flush-Coupled Casing.
Sizes include BW, NW, HW, PW, HWT, 46mm, 56mm, 66mm, 76mm, 86mm,
98mm(101mm), 113mm(116mm), 128mm(131mm), 146mm(143mm), 4", 5", 6",
8", 10", 12", NX, HX, PX, 89 mm,108 mm, 127 mm, 110 mm.