Qing he County Great Wall Sealing Co., Ltd., established in the 1980s, is a leading Chinese manufacturer specializing in rubber and plastic products. Our core products include rubber hose, spiral guard, outrigger pads, seals, and molded parts. We utilize high-quality raw materials and advanced production equipment. Our company is ISO 9001 certified, and our products meet international standards like EU RoHS. We are a proud long-term supplier to major global companies like Sany Heavy Industry, XCMG, and Parker Hannifin. With a strong focus on quality and innovation, we are a reliable factory and business partner for the construction machinery, automotive, and petroleum industries. We welcome global clients for OEM/ODM cooperation.
This polyester thread reinforced NBR hose features integrated woven structure with high stability, rated at 1MPa working pressure for medium-high pressure oil transmission.
The polished smooth inner NBR tube reduces oil adhesion and residue, preventing clogging and extending service life.
Made of premium NBR material, it offers outstanding oil resistance to mineral oil, fuel oil, lubricant and hydraulic oil, free from swelling or cracking after long use.
It works stably at -30℃ to 120℃, remaining flexible in extreme cold and heat.
Widely applied in automotive oil circuits, mechanical hydraulic lines and industrial lubrication systems to stop oil leakage.
Finished black rubber hoses in various specs with clamps.
Rubber materials and hose extrusion process.
Braided layer strengthening for hoses.
Oil resistance comparison test.
Hydraulic pressure resistance test.
Dimensional precision quality check.
Having an independent mold manufacturing workshop ensures the minimization of mold costs and shortens the mold manufacturing cycle, which can adapt well to the characteristics of small batch and multi batch new product development in the construction machinery industry;
More than 23600 sets of molds and a 3000 square meter mold three-dimensional warehouse ensure the storage and turnover of product molds, which has good adaptability to the characteristics of the construction machinery.
We are a factory specializing in the production of rubber and plastic products, providing OEM and ODM services, can provide you with the best quality products and reasonable prices, at the same time we have also obtained UL, CUL, ROHS and Reach certification.
Yes, we provide free samples, you only need to pay for the shipping cost.
Normally, MOQ for regular colors and sizes is 10m.
If the payment amount ≤ 600 USD, 100% is prepaid. If the payment amount exceeds 600 USD, 30% is prepaid, and the balance is due before shipment. You can pay directly through the product link, or pay via TT or PayPal.
Samples need 2-3 days, mass production needs 3-20 days after payment received (depending on quantity).
We will send the goods to you via UPS, DHL, TNT, Fedex, overseas transport or other freight forwarders. All goods are accompanied by tracking numbers, and you can track your order according to the number.