BRAVO CHEMICAL CO; LTD. IS AN EXPERT p-Toluene Sulfonic Acid /PTSAMANUFACTURE.“EXCELLENT QUALITY & REASONABLE PRICE” ARE THE COMMNETS FROM OUR CUSTOMERS.Para Toluene Sulfonic Acid (PTSA) IS WIDELY USED AS CATALYST IN MANY CHEMICAL INDUSTRY.BRAVO CHEMICAL CO; LTD. WILL KEEP TO PURSUIT “MORE EXCELLENT QUALITY & MORE REASONABLE PRICE” FOR OUR CUSTOMERS. ... {read more}