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Product Description

Established in 1980, Sino Industry and Trade (hereinafter referred to "SITC") is a leading foundry manufacturer specializing in the design, research, development, manufacture and marketing in the foundry industry. Being one of major suppliers of customized parts for automobile manufacturers spreaded all over the world, the company is commited to offer high quality products with competitive prices and excellent service worldwide.
Headquartered in Rizhao City, Shandong Province, P.R. China, the company wholly owns a subsidiary production factory named "Rizhao Longshan Pricision Machinery Manufacture", which covers an area of more than 90,000 square meters, possesses abundant technical strength and sound production management system, superior casting&machining production equipments, strict and effective quality control system, advanced and excellent inspection instruments.
More than 40 years experience in casting industry, with 60 experienced technical engineers and more than 800 skilled workers, SITC has a senior engineering technical team with special skills and rich experience in product design, casting, forging, and CNC machining fields, can solve and handle special material, special structure, special defect and special processing, meet the evolving needs of, and provide optimal solution and real one-stop service to, our customers.
Contact us via the following channels:

1* Mature one-stop service system.
We provide real one-stop service for all customers
(1)we are the source manufacturers, and our price has an absolute advantage.
(2)We have our own technology department to solve all-round problems related to product technology.
(3)We have a complete production line, products from raw materials to finished products are under our control.
(4)We have a strict product quality monitoring system to ensure the quality of our products and after-sales service.
2* Modern machinery and patented equipment.
We have more than 30 kinds of mechanical equipment related to casting, grinding, processing, surface treatment, etc., more than 400 sets in total, including 60 sets of four-axis machining center (CNC) and 2 sets of digital special machines designed with double main axle boxes. Our equipment has significantly improved production efficiency and product quality.
3* Sufficient production capacity.
We supply more than 110000 tons of goods to more than 12 clients in 2022. Under the supervision of a production system, We not only ensures sufficient supply capacity, but also achieves 98% delivery efficiency.
4* Modern laboratory.
Every process of each batch of products from raw materials to finished products will be tested in the laboratory to ensure that the quality of each batch of products is up to the standard. For example, we will carry out spectral inspection for each batch of raw material samples, and carry out tensile test for specific products through tensile machine to ensure the tensile strength of products, etc.
5* Wide application of products
The castings produced by us are widely used in various industries,such as construction vehicles, trains, railways, forklifts, agricultural machinery and other mechanical equipment. We can produce all kinds of castings with high precision CNC machining according to customer's drawings/sample/requirements.
6* Perfect product information tracking
After the product is inspected in terms of quality, we will record the products produced by different batches of raw materials and archive the production information of each batch of products, each of our products is marked with raw material batch number and factory production code. Our purpose is to find the root of the problem accurately when the customer has the demand for product quality and after-sales, and find the same batch of products to ensure that these products are free of problems.