Hoʻohana i ka carburizing agent
E like me ka inoa kaulana o ka honua o ka sulfur haʻahaʻa calcined, graphitized carburizing agent a me ka hoʻohaʻahaʻa ʻana no nā huahana kemika, ke hoʻoikaika nei mākou e hana i ka waiwai no ka ʻoi aku ma mua o 3000 mau wili kila nui, foundries a me nā mea kanu kemika ma 65 mau ʻāina a puni ka honua.ʻO ka mua, nā wili kila, i ka pr...