为提高国内载重子午胎的质量水平，设计了一条胎圈用扁钢丝生产线。
To improve the level of domestic loading meridian tyre quality, a flat bead wire line is designed.
运用轮胎整体结构设计法，开发研制出80、75系列低断面无内胎全钢丝子午线载重轮胎。
The 80, 75 series low contour, inner tube free, radial ply truck tires have been developed through utilizing tire integral construction design.
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