What is the lead time for production?

The average lead time is one month, regardless of peak or off-peak seasons.

What shapes are available for the manhole cover?

We offer round, oval, and rectangular shapes to suit different installation positions and equipment designs.

DN400 Stainless Steel Manhole Cover with Sight Glass

Name: DN400 Stainless Steel Manhole Cover with Sight Glass
Brand: Zhejiang L&B Machinery Co., Ltd.
SKU: 2067007095

Zhejiang, ChinaZhejiang L&B Machinery Co., Ltd.

US$100.00-500.00

1 Piece

Product profile

Customization

Available

Casting Method

Sand Casting

Casting Form Material

Metal

Model NO.

BLS-RK

Casting Metal

Stainless Steel

Casting Form Usage Count

Permanent

Surface Treatment

Polishing

Surface Roughness

Ra0.4

Coating

Machining Tolerance

+/-0.10mm

Standard

DIN

Certification

ISO 9001:2008

Sanitary

Stainless Steel

Food Grade

Aseptic

Name

Manhole Cover

Size

DN200-800

Packing

Standard Export Package

Transport Package

Standard Export Packing

Specification

Standard

Trademark

BLS

Origin

Zhejiang, China.

HS Code

847982

Production Capacity

100 PCS/Day

Key features

Food Grade Sanitary Material: Available in SS304, SS316L, SS321, SS304L ensuring aseptic and food-grade safety.

Wide Size Range Customization: Sizes customizable from DN200 to DN800 to fit various equipment specifications.

ISO 9001 Certified Quality: Manufactured under ISO 9001:2008 standards with strict machining tolerance of +/-0.10mm.

Diverse Shape Options: Available in round, oval, and rectangular shapes to match different installation needs.

OEM/ODM Service Support: Professional OEM and ODM services available with dedicated R&D engineers.

Robust Construction Design: Composed of short pipe, flanges, and covers with handles for easy maintenance access.

Fast Opening Mechanism: Options include ordinary and quick-opening types for efficient worker entry and exit.

Company profile

Zhejiang L&B Machinery Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 24 Years CertifiedNearest Port: Ningbo portAverage Response Time: ≤9.61h

AI-Powered supplier vetting

SummaryZhejiang L&B Machinery Co., Ltd. is a China-based factory established in 2002, with 56 employees and a 3,295 m² manufacturing plant. Its product scope includes tanks, emulsifying machines, pumps, valves, mills, storage tanks, and sanitary fittings. The supplier reports ISO 9001:2015 certification, two production lines, export sales of 71%–90%, and export markets spanning Southeast Asia, the Middle East, Europe, and North America. It states one-month lead times in both peak and off-peak seasons and has self-operated import/export rights. Evidence confirms relevant manufacturing and export activity, but information is insufficient to establish after-sales capability, customization capability, or strong innovation performance. Trade records identify one buyer and several stainless-steel valve transactions, supporting evidence of customer activity but not a broad customer portfolio.

Supplier typeThe supplier is identified as a factory and a limited company located in Wenzhou, Zhejiang, China, with company type listed as combined. Its stated manufacturing plant and product range further support classification as a machinery and component manufacturer.

CertificationsThe supplier reports holding an ISO 9001:2015 certificate. This is explicit evidence of a certified quality management system, although the scope and current validity details are not provided.

Financial creditThe supplier reports registered capital, annual revenue, a 2002 establishment date, 56 employees, and a 3,295 m² plant. These details indicate an established operating entity, but the provided information does not independently verify financial stability or payment performance.

Production capacityThe supplier operates two production lines, reports a 3,295 m² manufacturing plant, offers a broad range of machinery and sanitary components, and states one-month lead times in both peak and off-peak periods. These facts support established production capability, while the fewer-than-five quality-control staff indicate a relatively lean quality organization.

Client casesThe supplier reports export sales of 71%–90% and markets in Southeast Asia, the Middle East, Europe, and North America. Trade records show shipments through Ningbo involving NKR ENGINEERING PVT LTD and several stainless-steel valve products, providing concrete transaction evidence but only one identified buyer in the supplied records.