Shandong Welchem Sintech Machinery Co., Ltd. wani hadadden kamfanin da aka tara kimiyya bincike, ci gaba, sarrafawa da kuma samar da cam inji, da kuma cam raba tare da synchronous band mota. A halin yanzu an kafa nau'ikan nau'i uku na arc-nau'i, daidai-daidai, tebur-nau'i na cam mai rarraba, kuma ana iya sarrafa wasu musamman, baƙin mamaki na cam bisa ga bukatun masu amfani don saduwa da wasu bukatun masu amfani na musamman. Sauki shigarwa, kyakkyawan bayyanar, daidaitaccen motsi, ƙananan halayen haɗin amo na motar rarraba.