女子初尝黑人巨嗷嗷叫_亚洲JLZZJLZZ少妇_妈妈的朋友1在线观看_久久精品色妇熟妇丰满人妻5O


ZH

KR

JP

ES

RU

DE

Enhanced graphene

Enhanced graphene, Total:2 items.

In the international standard classification, Enhanced graphene involves: Lubricants, industrial oils and related products.


Group Standards of the People's Republic of China, Enhanced graphene

  • T/CGIA 31-2019 Graphene-enhanced extreme pressure lithium grease for construction machinery
  • T/ZSA 74-2019 Graphene-enhanced extreme pressure lithium grease for construction machinery




Copyright ?2007-2023 ANTPEDIA, All Rights Reserved