The limestone used in limestone industry, cement industry, It is used to make lime for the tanning industry and the sugar industry. With the production of tartar in Muang District, Chiang Rai, and Amphoe wiang Chai.
limestone industry Limestone is used in the cement industry. Used to make lime for the tanning industry And the sugar industry The production of limestone in the city of Chiang Rai and Wiang Chai District.
The limestone industry, is used in cement industry, limestone Used to make lime for tanning industry and sugar industry. Production region and limestone in Chiang Rai, wiang Chai