Welcome to Ningbo Langheng Exp&Imp. Co.,Ltd
About Us Ningbo Langheng Rubber & Plastic is a professional manufacturer of O-rings, oil seals, gaskets and other rubber parts. International Standards Product quality is our top goal. We control our raw materials' quality from the very beginning. All of our raw materials meet NSF-61, FDA, UL, WRAS, GB2828 and other standards. Our 20 QC officers retest them before putting them into production. ODM/OEM Projects are Welcome We have been in this business for many years. Our R&D department is composed of 10 engineers with over five years' experience in providing ODM/OEM services for rubber seals and construction materials. With five percent of sales revenue reinvested in R&D, we concentrate on developing new designs. We now offer more than 100 sizes for your selection. Get a Reply within 24 Hours Send us your inquiry now, and your questions will be professionally replied to within 24 hours.
