The development and testing of the formula of the new type oil resistant and coldresistantrubber are described with reference of the stand ard for the same category products abroad.
在参考国外同类产品标准的基础上,介绍了新型耐油又耐寒橡胶配方的研制、试验情况。
2
As the use of cold-resistantrubber materials have satisfactory results.