Hirun S. Sewee Co., Ltd. is a manufacturer and distributor of quality fiberglass products of all kinds for over 22 years by using engineers and technicians who have experience in producing fiberglass according to customer requirements such as treatment tanks. Wastewater, grease traps, chemical storage tanks, Pultrusion pipes, high-pressure fiberglass, RO filter pipes, fiberglass tanks TIS 435-2548 in addition, the company is pleased to design tanks and septic tanks. used through a reverse osmosis (RO) water purification plant for 30 years of experience. The company researches and develops technology to produce fiberglass products that meet international standards for the best benefit of our customers. We have experts to provide knowledge, advice and advice on products every step of the way. because we believe “Our customers are always satisfied with good quality at a reasonable price.”