Zhenze Trading - Pig Iron & Cast Iron Products Supplier

Pig Iron & Cast Iron Products from Northwest China

Foundry pig iron (Z14/Z18/Z22), ductile iron pig iron, grey & ductile iron castings, and cast iron pipe fittings. Backed by our own production base — Gansu Jinli Building Materials Manufacturing Co., Ltd. Daily output 50-70 tons. FOB Tianjin export.

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Why Choose Zhenze

Four core advantages that set us apart

🏭

Northwest China Origin

Production base in Zhongpu Industrial Park, Lintao, Gansu. Competitive land transport cost to Central Asia via overland routes.

⚙

50-70 Tons/Day Capacity

Four 1.5-ton medium-frequency induction furnaces (two active, two standby) plus a 2-ton cupola furnace. 24/7 two-shift operation.

⚒

FOB Tianjin Export

Complete export capability with FOB Tianjin pricing. Full documentation support including material certificates and heat treatment records.

✅

Quality Control System

Spectrometer chemical analysis, pre-furnace melt testing, and batch tracking. Every shipment comes with a material test certificate.

Our Core Products

Full coverage from raw pig iron to finished castings and fittings

Z14 Z18 Z22

Foundry Pig Iron

Grey cast iron pig iron conforming to GB/T 718-2005. Ideal for casting foundries requiring stable carbon and silicon content.

Q10 Q12

Ductile Iron Pig Iron

Nodular pig iron per GB/T 1412-2005. Low sulfur and titanium content, optimized for ductile iron casting production.

HT150 HT250 HT300

Grey Iron Castings

Custom grey iron casting parts per GB/T 9439-2010. Max single piece weight up to 1.2 tons. Suitable for machinery, housings, and structural components.

QT400 QT600 QT700

Ductile Iron Castings

Nodular iron castings per GB/T 1348-2009. High strength and toughness for automotive, agricultural, and industrial applications.

A-Type W-Type

Cast Iron Pipe Fittings

A-type and W-type cast iron drainage pipe fittings. Complete specifications for building drainage and municipal engineering projects.

Custom OEM

Custom Casting Parts

Custom casting services per customer drawings and specifications. From prototype to mass production with flexible MOQ.

2016

Production Base Established

50-70t

Daily Iron Output

4+1

Induction Furnaces + Cupola

5M+

RMB Registered Capital

Gansu Jinli factory aerial view - Zhenze Trading production base

Production Base + Sales Company

Gansu Jinli Building Materials Manufacturing Co., Ltd., established in 2016, is a specialized cast iron manufacturing enterprise integrating R&D, production, processing, and sales. The production base is located in Zhongpu Industrial Park, Lintao, Dingxi, Gansu Province.

To optimize market layout and improve the sales service system, the company established its wholly-owned sales subsidiary — Lanzhou Zhenze Trading Co., Ltd. — forming an integrated business model of "production base + professional sales company."

Production-sales separation with professional operations
Strategic Northwest China location for land export advantage
Complete quality control from melt to shipment
Flexible MOQ and 7-15 day delivery cycle