
Hana maʻamau ʻia nā ʻūhā poʻo kumu paʻa CSK mai nā ʻano mea like ʻole, i koho ʻia kēlā me kēia e hoʻokō i nā koi kūikawā. ʻO ke kila kalapona kahi mea maʻamau i hoʻohana ʻia no nā hana maʻamau. Hoʻohana pinepine ʻia nā papa e like me 4.8, 8.8, a me 10.9.
Ua hoʻokumu ʻia ʻo Hebei Fujinrui Metal Products Co., Ltd. ma 2004 a aia ma Handan City, Hebei Province. Hoʻopili ka hui i kahi ʻāpana o 10,000 square square a loaʻa iā ia kahi limahana ma mua o 200 poʻe. He ʻoihana ia e hoʻohui i ka hana huahana fastener a me ka pale ʻana i ka corrosion surface metal, me kahi hui ʻenehana hana makua. ʻOi aku ma mua o 20 mau makahiki o ka ʻike i ka ʻoihana paʻa.