But the peak of contact pressure between rolls forms when the intermediate roll shifts, which leads local wear of rolls and quality defects of strip.
但由于中间辊轴向窜动后，在工作辊与中间辊、中间辊与支撑辊间形成接触压力峰值，导致轧辊局部磨损及带材表面质量问题。
Polycarbonate full-face visor complete with peak and safety latch. Supplied with screw fasteners, and a foam sealing strip, the visor can be easily attached and removed from the helmet.
配有安全扣的全面部遮阳面罩，配有螺丝紧固件，以及泡沫密封条，遮阳面罩可以容易地安装在头盔及卸除。
Polycarbonate full-face visor complete with peak and safety latch. Supplied with screw fasteners, and a foam sealing strip, the visor can be easily attached and removed from the helmet.
配有安全扣的全面部遮阳面罩，配有螺丝紧固件，以及泡沫密封条，遮阳面罩可以容易地安装在头盔及卸除。
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