Gold Member Since 2013
Audited Supplier

Tianjin TYWH Imp. & Exp. Co., Ltd.

Calcium Carbide, Activated Carbon, Carbon Additive manufacturer / supplier in China, offering Wood Based Activated Carbon, Powdered Activated Carbon of Fine Particles Pass Through an 80-Mesh Sieve, Calcium Carbide China and so on.

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Quality Control

Quality control [Mar 20,2017]
Quality control
1. We will take a lot of sampling testing second time during carbide processing, to ensure products with good gas yield. 
2. We often do air pressure testing to drums, ensures carbide drums seals tight and safety. 
3. Different sizes stored separately, to avoid size mixing.
4. We will take sampling test again before goods loading, ensures loaded goods with correct weight, sizes, gas yield and quantity.
5. Our Carbide Production is based on Chinese National Standard: GB10665-2004.