Customized Metal Gravity Casting Aluminium/Metal Part Gate Valve White Ductile Sand Cast Roll Grey Iron Components

Changzhou Renying and Changzhou Zhude are both subsidiaries of Shanghai Zhuzheng. Changzhou Renying specialises in trade and sales, while Changzhou Zhude focuses on production and processing.

We will submit the quotation in 24 hours if getting detailed information during working days. Please provide 3D Step files, 2D drawings, material requirement, surface treatment, quantity, and any special demands.

1) Each furnace undergoes dual inspection via spectrometer and carbon-silicon analyser. 2) Mechanical property testing is conducted on samples from every furnace. 3) Workpieces undergo full visual inspection and non-destructive testing as required.

If receive defective product, please send us the photos, we will feedback to our engineers and QC departments and solve the problems.

1) For moulds, coated with anti-rust oil, covered with thin films, and packed into fumigation wooden case. 2) Products are packed into standard export cartons or as per customer's request.