Razvojna zona Ningbo Daxie Tianshan Cylinder Block Co., LTD. (u daljnjem tekstu "Tianshan cilindrični blok") osnovan je 1992. godine, s registriranim kapitalom od 5 milijuna juana, smješten u Ningbou, provinciji Zhejiang, u blizini međunarodnog transportnog čvorišta luke 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 JN250/300 (Φ72/75) pribor za cilindre od lijevanog željeza suppliers and JN250/300 (Φ72/75) pribor za cilindre od lijevanog željeza 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.
Kao preferirani izbor kupaca, Tianshan proizvodi blok cilindra s "naprednom tehnologijom, dobrom tehnologijom, visokom kvalitetom, punom raznolikošću" dobro poznati na domaćem i stranim tržištima, i prodaju se diljem zemlje, te izvoze u jugoistočnu Aziju i druge zemlje i regije, sada ima više od 300 različitih specifikacija modela.
Materijal: lijevano željezo;
Promjer cilindra: Φ72mm (JN250)/Φ75mm (JN300), vanjski promjer 80-85mm, ukupna duljina 120-130mm;
