Adopt double pre-scoring when working, then do final scoring, reduce scoring Seam broken, suit for poor quality carton sheet manufacture.
分切前后采用两次预压送纸，最后压线成型降低纸板的爆线率，适用于劣质纸的加重箱板的成型。
There was a broken seam sliding structure mainly developed in the mining area and there was less folding broken in the seam.
矿区主要发育断裂式层滑构造，造成煤层揉皱破碎较少。
There was a broken seam sliding structure mainly developed in the mining area and there was less folding broken in the seam.
矿区主要发育断裂式层滑构造，造成煤层揉皱破碎较少。
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