rubber additives Antioxidant DSTDP CAS NO.693-36-7

1. Supply top quality products with a reasonable price.

2. Arrange the orders and shipping with your requests on time, According to the different countries export policy provide complete customs clearance documents.
3. Samples can be arranged for testing and Unconditional assume responds
4. Provide a price trend, ensure the clients can know about marketing information in time.

Bokchang chemical has established a strict quality management system and has passed ISO 9001 quality management system certification. Our production and agency products strictly follow the quality management requirements to ensure that the products are uniform, effective and stable.  In order to ensure product quality, Bokchang chemical has purchased a variety of advanced experimental and analytical instruments, such as HPLC, GC, IR etc..

Strict quality management

According to the actual situation, the company has established strict quality management regulations, and the implementation results are directly related to the performance appraisal of employees.

1. Raw material storage inspection

Request the supplier's raw material COA, compare it with the company's quality inspection results, and fill out the “Incoming Raw Material Inspection Form”. If it is qualified, it will be put into storage. If it is unqualified, it will be returned to the supplier;

2. Semi-finished product inspection

After each step of the reaction, the corresponding synthetic product is tested. If the structure and purity are qualified, the next reaction is carried out; if the structure or purity is unqualified, the experiment will be repeated. All test results need to be filled out to the "semi-finished product inspection form";

3. Finished goods warehouse-in inspection

The finished product can only be put into storage after the physical and chemical properties (appearance, structure, purity, melting point, etc.) meet the requirements, and a special person is required to review the quality inspection structure, and at the same time fill in the “Research and Development Department Product Storage Confirmation Form” and “Product Quality Inspection Report”;

4. Finished warehouse-out product inspection

When the product stays in our warehouse for more than 12 months, or the product structure is unstable, our company will re-test the product when it is shipped out of the warehouse, and fill in the "Product Quality Test Report". Only products that meet customer requirements will be issued.

Product Quality Inspection Report (COA): The product batch quality inspection report can be obtained from our company after the product is purchased.

The above various inspection orders and reports, etc., are all managed by the specially-assigned person and are convenient to call at any time.

   Comprehensive services

Our company can provide customers with professional pre-sales and after-sales technical support services.

1、Product structure query

Inquire about products based on the product structure provided by the customer.

2、Custom price calculation

Calculate the price and delivery time of customized products according to customer requirements.

3、Pre-sales product consultation

Introduce the purity and technical specifications of the product before the sale.

Instructions

4、Provide product direction and precaution, and standard COA and MSDS.

5、Product performance tracking

Track the use of some special products and do continuous targeted product optimization.