2026/08/16

How is quality inspection conducted for the raw materials of cast stone composite pipes?

Raw material quality control is the first critical step in ensuring the quality of wear-resistant cast stone products. The inspection process covers two main categories of raw materials: stone materials and steel components (pipes and plates).


2026/08/03

What are the steps for the final inspection of cast stone composite pipes?

The inspection of cast stone composite pipes spans the entire production and construction workflow. Guided by principles of high standards, strict requirements, and rigorous implementation, we ensure that every stage is controllable and traceable.


2021/05/29

Hua'an Cast Stone 2020 Annual Disclosure of Solid Waste and Hazardous Waste Information

Hua'an Cast Stone 2020 Annual Disclosure of Solid Waste and Hazardous Waste Information


2019/05/07

Public Notice of Winning Bid for a Batch of Cast Stone Pipe Tender Project by Chengchao Mining Co., Ltd., Wugang Resources Group

Public Notice of Winning Bid for a Batch of Cast Stone Pipe Tender Project by Chengchao Mining Co., Ltd., Wugang Resources Group


2019/03/13

Procurement Project for Composite Cast Stone Elbows and Other Components of Guodian Zhejiang Beilun No.1 Power Generation Co., Ltd.

Procurement Project for Composite Cast Stone Elbows and Other Components of Guodian Zhejiang Beilun No.1 Power Generation Co., Ltd.


2018/10/25

Announcement of Evaluation Results for Composite Cast Stone Straight Pipe / Φ273 × 5 / DN200 (Beilun No. 1)

Preferred Supplier: Penglai Hua'an Cast Stone Pipe Fittings Co., Ltd. 3. If any bidder has complaints about the evaluation results, they may file a complaint with the Procurement and Materials Management Department of China Guodian Corporation within 10 days following the end of the announcement period.


2018/09/06

Notice of Winning Bid for Slag Removal Machine Cast Stone Slabs (Datong Company)

Announcement of Winning Bid: Announcement of Evaluation Results for Slag-Removal Machine Cast Stone Plates (Datong Company) Successful Supplier: Penglai Hua'an Cast Stone Pipe Fittings Co., Ltd.


2018/06/06

Announcement of Evaluation Results (Winning Bid Results) for Our Company’s Forged Clamp-Type Flexible Ring Pipe Fittings / Φ426 (Beilun Yifa)

To all bidders: WZJM-2018050683 [Forged Clamp-Type Flexible Annular Pipe Fitting / Φ426 (Beilun No. 1 Factory)] has undergone expert review by the organizing committee. The results of the review are hereby announced as follows:


2018/03/18

The global economy is still in a period of overall slowdown; trends and outlook for the pump and valve industry.

In 2018, many industries felt the pace of Industry 4.0 and smart manufacturing accelerating. Entrepreneurs increasingly felt the growing pressure of change.


2018/03/08

Industrial intelligence—the wave of the smart equipment industry—is here.

After years of steadfast reform and innovation, China’s equipment manufacturing industry has indeed made remarkable progress. Domestic equipment manufacturing brands are both the driving force behind this endeavor and its key beneficiaries.


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