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22 product categories
API Well Cement Class B
API Well Cement Class C
API Well Cement Class D
API Well Cement Class G
API Well Cement Class H
API Well Cement Class K (Annex B)
API Well Cement Class L (Annex B)
Barite 4.2 g/mL
Barite 4.1 g/mL
Hematite
Bentonite
Non-treated Bentonite
Attapulgite
Sepiolite
Technical-Grade, Low-Viscosity Carboxymethyl Cellulose (CMC-LVT)
Technical-Grade, High-Viscosity Carboxymethyl Cellulose (CMC-HVT)
Starch
About product categories and sources
Includes 324 product categories from the API Composite List search snapshot. Chinese labels are OFMP reading aids, not official API translations; original English names are retained for comparison. Product categories and certificates do not establish specific models, availability or delivery capability; confirm these with suppliers. Category snapshot: 2026-10-10
View the API category source