Black Flat Head Allen maɓallin ƙwararrun maƙaryaci ne wanda aka yi amfani da shi daga manyan kayan inganci don tabbatar da dorewa da ingantacciyar hanyar haɓaka aiki. Carbon Carbon ne wanda aka saba amfani dashi, musamman a cikin maki kamar 4.8, 8.8, da 10.9.
Knurled Hex Allen socker zanen kananan na'urori ana yawan halittun daga high - ingancin kayan don tabbatar da karko da aminci da ƙarin sauri. Carbon Carbon shine kayan da aka saba amfani da shi, musamman a cikin maki kamar 4.8, 8.8, da 10.9.
Hebei Fujinrui Muryungiyoyin Zamani da aka kafa a 2004 kuma is located a cikin gari na hannu, lardin Hebei. Kamfanin ya hada da wani yanki na murabba'in mita 10,000 kuma yana da ma'aikatan fiye da mutane sama da 200. Infofi ne wanda ke haɗe da samar da kayan kwalliya da ƙarfe na lalata na samaniya, tare da ƙungiyar fasahar samar da kayan gargajiya ta girma. Fiye da shekaru 20 na gwaninta a cikin masana'antar Fasterner.