Hoʻohana ʻia ka huahana Mid-pressure no ka holo ʻana a me ka mālama ʻana i nā lako kemika, e like me ka paila penikala waipili, ka aniani e ʻoliʻoni ana, propylene, butadiene, isobutene, dimethyl eter a me nā mea kemika, kahi me ka nui nui, nā māmā lika a me ka wikiwiki wikiwiki ʻana ʻai.