免费国产亚洲视频,欧美激情精品久久久久久,中中文字幕av在线,国产精品黄色大片,av黄色一级片,日日摸天天碰中文字幕你懂的,亚洲精品日韩综合观看成人91

Specifications: 1 ~ 80mm × 500 ~ 2000mm
Performance: Operating Temperature -10 ~ 60 ℃; work in oil (oil, diesel, gasoline, oil) medium, with tightness and resistance to expansion
Laying class for punching all kinds of oil seals, seals, rings, fats and oils in contact with the bench, floor, electronic products places: Uses
Design: special specifications and special technical requirements of the product, according to customer needs, design recipes for you to meet your requirements
Packing: film, woven bag length or be re-packaging

GB0402 NBR rubber sheet
Uses: oil-resistant material, as tanks, oil pipelines sealed using