Xingtai City Qingshan Co., Ltd., also known as STO Oil Seal, is a professional manufacturer and exporter specializing in high-performance rubber sealing solutions. Established in 1996 and headquartered in Xingtai, Hebei Province—China's largest sealing products production base—the company operates a 6,000-square-meter facility equipped with advanced production lines and quality control instruments, including tensile and material testing machines. The company maintains a workforce of approximately 50 to 100 employees, including specialized technical staff, and holds ISO 9001 and IATF 16949 certifications to ensure international quality standards.
The company’s extensive product portfolio includes TC oil seals, O-rings, valve stem seals, hydraulic seals, PU seals, and skeleton oil seals. These components are manufactured from a variety of high-grade materials such as NBR, FKM, EPDM, Silicone, and PTFE to suit diverse industrial needs. Their products serve a wide range of sectors, including automotive, motorcycle, industrial machinery, and hydraulic pneumatic systems.
As a versatile B2B partner, Xingtai City Qingshan Co., Ltd. provides comprehensive OEM and ODM services, supporting contract manufacturing and custom rubber molded products. With a significant production capacity of millions of units per month, the company has established a strong global presence, exporting to over 30 countries across North America, Europe, the Middle East, and Southeast Asia. They are recognized for their STO brand and their ability to deliver competitive sealing solutions for both principal machine matching and aftermarket spare parts.
OEM manufacturerOffers OEM services for customized brand manufacturing.
ODM manufacturerProvides ODM design and manufacturing solutions.
Own brandOwns and operates its own brands and manufacturing facilities.
High-tech enterpriseRecognized as a high-tech or innovative enterprise.
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VB Oil Seal (XLD-M006)
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VB Oil Seal (XLD-M006), Find Details and Price about Oil Seal Vb Oil Seal from VB Oil Seal (XLD-M006) - Xingtai City Qingshan Co., Ltd.
DC Oil Seal
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DC Oil Seal, Find Details and Price about Oil Seal Dc Oil Seal from DC Oil Seal - Xingtai City Qingshan Co., Ltd.
Engine Oil Seal (XLD-M007)
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Engine Oil Seal (XLD-M007), Find Details and Price about Oil Seal Engine Oil Seal from Engine Oil Seal (XLD-M007) - Xingtai City Qingshan Co., Ltd.
TC Oil Seal (XLD-M010)
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TC Oil Seal (XLD-M010), Find Details and Price about Oil Seal Tc Oil Seal from TC Oil Seal (XLD-M010) - Xingtai City Qingshan Co., Ltd.
NBR Engine Oil Seal
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NBR Engine Oil Seal, Find Details and Price about oil seal from NBR Engine Oil Seal - Xingtai City Qingshan Co., Ltd.
Value Oil Seal (xld-m009)
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Value Oil Seal (xld-m009), Find Details and Price about framework oil seal oil seal from Value Oil Seal (xld-m009) - Xingtai City Qingshan Co., Ltd.
Oil Seal
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Oil Seal, Find Details and Price about oil seal from Oil Seal - Xingtai City Qingshan Co., Ltd.
Factory Direct Selling Heat Resistant Seal Oring FKM Silicone NBR Rubber Sealing O Ring Silicone O-ring
5·12 reviews
Factory Direct Selling Heat Resistant Seal Oring Fkm Silicone Nbr Rubber Sealing O Ring Silicone O-ring - Buy O Ring Oring
encapsulated O Ring
o Ring Assorment Kit
seal O Ring Rubber
o-ring Ffkm
silicon O Rings 45mm
car Ac O Ring
metal O-ring Product on Alibaba.com$0.02
China Manufacturer High Quality Customizable NBR FKM Oil Resistant High Temperature Resistance O Ring Sealing Ring
5·12 reviews
China Manufacturer High Quality Customizable Nbr Fkm Oil Resistant High Temperature Resistance O Ring Sealing Ring - Buy O Ring 25mm
oil Seal O-ring
metal O Ring For Gasket
custom O Ring
white O Rings
o Ring 0.75
gland O Ring Kit Product on Alibaba.com$0.02
Metal case Oil Seals for Washing Machine Compressor Oil Seal and Others Car Oil Seal
5·12 reviews
Metal Case Oil Seals For Washing Machine Compressor Oil Seal And Others Car Oil Seal - Buy Felt Oil Seal
43119-28020 Oil Seal
oil Seals Valve
tiller Oil Seal
hydros Oil Seal
snak Oil Seals
oil Seal For Honda
oil Seal Cg125 For Honda
front Crankshaft Oil Seal
oil Seal Hilux Vigo
oil Seal Tc 50x72x12
crankshaft Front Oil Seal Product on Alibaba.com$0.8
60*85*10 & 75*95*10 Auto Oil Seal Crankshaft TC Type NBR/FKM Material 70-90Shore Hardness STO Brand Factory Price
5·12 reviews
60*85*10 & 75*95*10 Auto Oil Seal Crankshaft Tc Type Nbr/fkm Material 70-90shore Hardness Sto Brand Factory Price - Buy Volvo Crankshaft Oil Seal
hydraulic Oil Seal Kit
oil Seal Drive Shaft
oil Seal 100x135x13/15
front Fork Oil Seal
bajaj Fork Oil Seal
80-110 Agriculture Oil Seal Product on Alibaba.com$0.1
NBR HNBR Material 24*42.5*9/10 Power Steering Seals STO Oil Seal Factory
5·12 reviews
Nbr Hnbr Material 24*42.5*9/10 Power Steering Seals Sto Oil Seal Factory - Buy Hydraulic Jack Oil Seals
oil Seal For Ford Transit
oil Seal For Electric Scooter
ford Fusion 2013 Engine Oil Seal
sun Engine Valve Oil Seal 125
oil Seal Ptfe For Screw Compressor
howo Propeller Shaft Pinion Oil Seal Product on Alibaba.com$0.12
Reviews
4.9
14 reviews
“ good supplier (2)“ good supplier (2)
“ With pictures (4)“ With pictures (4)
Customers
TM LOGISTICS
79 shipments
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Certifications
ISO 9001
2
International Organization for Standardization 9001
IATF 16949
1
International Automotive Task Force 16949
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Key export market
🇪🇨 Ecuador🇪🇨 Ecuador
🇧🇷 Brazil🇧🇷 Brazil
🇺🇬 Uganda🇺🇬 Uganda
North AmericaNorth America
South AmericaSouth America
EuropeEurope
AsiaAsia
AfricaAfrica
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Xingtai Qingshan Sealing Co., Ltd.
🇨🇳 China
200651-100 peopleManufacturer/Trading Company
Own brand
OEM manufacturer
ODM manufacturer
High product rating
Shipments
1
Key customer
METALTRONIC
Key market
North America
Review
4.9
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Xingtai Hengxin Crafts Co.,Ltd, established in 2006, is a manufacturer and trading company based in Xingtai, China, specializing in unique purely hand-made handicrafts. With over 50 employees, including 3 technical staff, the company focuses on R&D and utilizes rural resources to create its products. Their offerings include Pecan wood hyacinth handicrafts, golden crag products, and longevity turtle products, some of which have applied for national patents and received the Agricultural Products Quality Award in the National Agricultural Fair 2007. The company's products, such as various vases and general handicrafts, are primarily targeted at the tourist handicrafts souvenirs market. Xingtai Hengxin Crafts Co.,Ltd provides contract manufacturing, ODM, and OEM services.