Ko te Demai Rubber & Plastics (Hebei) Co., Ltd. he kāwanatanga mōhiotia ki te whakariterite rūmau, te rūmau iti, te rūmau matua, te pīpī mata, te whakapau korokoro, te hononga rūmau, me ētahi atu nui ake hoko me te tānga i ngā mea, kei roto i tētahi rautaki whakahaere.
He maha ngā tau o te kaiwhakahaere me te rangahau i ngā pīpī whakawhitione, ngā pīpī hākana, ngā pīpī mata, ngā pīpī porohita, me ētahi atu mea i runga i te Demai Metal Hoses Co., Ltd.. Kei ngā mea e rite ana te mahi, te roa o te wā o te mahi, me ngā tohu me ngā tūranga katoa, ka taea te whakaatu me te hanga i runga i ngā hiahia o ngā kaihoko.