Ningbo Daxie Development Zone Tianshan Cylinder Block Co, Ltd. (Pagkatapos nito ay tinukoy bilang "Tianshan Cylinder Block") ay itinatag noong 1992, na may isang rehistradong kapital na 5 milyong yuan, na matatagpuan sa Ningbo, Zhejiang Province, na katabi ng port ng International Transportation Beilun.
Tianshan cylinder block adheres to the technology orientation as the core, sets product research and development and application services in one, and gradually realizes the leap from traditional manufacturing to advanced manufacturing. At present, Tianshan cylinder sleeve covers an area of 24,000 square meters, with advanced machinery and equipment of more than 200 sets, and is a professional DF25 (φ68) Outboard Engine Cylinder Series Mataas na Silicon Aluminum Alloy Technology suppliers and DF25 (φ68) Outboard Engine Cylinder Series Mataas na Silicon Aluminum Alloy Technology factory. The company has always focused on technology, deep cultivation, forging ahead, strong technical force, advanced manufacturing technology, and continues to scale, with science and technology advancing.
Bilang piniling pinili ng mga customer, ang mga produktong block ng Tianshan Cylinder na may "Advanced na Teknolohiya, Magandang Teknolohiya, Mataas na Kalidad, Buong Iba't-ibang" Kilalang Sa Domestic at Foreign Markets, at ibinebenta sa buong Thecountry, at nai-export sa Timog Silangang Asya at iba pang mga bansa at rehiyon, mayroon na ngayong higit sa 300 iba't ibang mga pagtutukoy ng modelo.
Ang DF25 (φ68) na silindro ay isang sangkap na may mataas na pagganap na pangunahing dinisenyo para sa maliit at medium-power outboard motor. Gumagamit ito ng materyal na haluang metal na haluang metal na haluang metal (nilalaman ng silikon na 18%-20%) at katumpakan na die-casting na teknolohiya, na sinamahan ng teknolohiya ng pagpapalakas sa ibabaw, na makabuluhang nagpapabuti sa paglaban ng pagsusuot. Angkop para sa dongfa 25 horsepower outboard motor $
