ALF Machinery & Instrument ( Shanghai) Co.,Ltd.

home products

Pressure Gauges, Tubular door locks and deadbolts, Cam lock and door closer and more.

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Process Gauge

Process Gauge

We can supply a wide range of specifications.
Lock

Lock

Tubular locks meet ANSI Grade III standard.
12 years production and export experience.
Main market: North and South America.
Spring Assembly, Controlled Spring

Spring Assembly, Controlled Spring

Use for curtain rolling up and down.
Key Switch Lock for Cabinet & Box

Key Switch Lock for Cabinet & Box

Use for locking the wooden cabinet, glass cabinet, car, mailbox, etc. Dust-proof design.
Thumbturn Lock for Cabinet

Thumbturn Lock for Cabinet

Use for locking the cabinets.
Closer Kit for Storm Doors

Closer Kit for Storm Doors

Use for PVC-steel windows, screen doors, metal door or wood door. Pneumatic drive. Colors and components can be as required.
Mobile Home Lock /RV Lock

Mobile Home Lock /RV Lock

Mobile home lock /RV lock with drive-in latch
Plastic-socket Gauge

Plastic-socket Gauge

For general use.
This product has been granted with national patent.
Diaphragm Seal Gauge

Diaphragm Seal Gauge

For systems with high cycle rates,enviroments with continuous vibration or shock,and processes with pressure surges and spikes.
Door Lock Finish

Door Lock Finish

US3 PB, US5 AB, US11 AC, US15A AN
US26 BC, US26D SC, US32 SP, US32D SN
US10B ORB, WEN,BN,WL,PC
Patended Latch

Patended Latch

2-3/8" ~ 2-3/4" adjustable latch
Patended No.: ZL 2007 2 0067932.3
Duplex Gauge

Duplex Gauge

Two matched internal systems,two matched bourdon tubes.Two pointer for displaying two different but related pressures
General Dry Pressure Gauge

General Dry Pressure Gauge

For General purpose of measurement
Liquid Filled Gauge

Liquid Filled Gauge

Glycerine is the standard fill fluid and provides the best performance in most applications. Silicone has a low viscosity and works well when extreme temperature fluctuation or icing is expected
Gas Test Assembly

Gas Test Assembly

This gas test assembly is used in pressurizing and monitoring a gas system for leakage. Gauges and manifold / coupling can be purchased separately.
Water Test Gauge

Water Test Gauge

Water test gauge is usually used to test water systems for leakage. It can be installed to hose bibbs, boiler drains and lawn faucets.
Tire Pressure Gauge

Tire Pressure Gauge

For automobile tire pressure measurement purpose
All Stainless Steel Gauge

All Stainless Steel Gauge

For the most corrosive media and environments use. Liquid filling helps absorb vibration and pressure spikes, increasing the service life of the gauge. The dampening action of the liquid also reduces pointer flutter and lubricates the internal parts.
Process Gauge

Process Gauge

Corrosion and burn resistant industrial pressure gauge. The solid front & blow-out back design case meets safety requirements of ASME B40.1.
Fire-Extinguisher Gauge

Fire-Extinguisher Gauge

The spiral tube technology used in these gauges offers the necessary accuracy without the complication of gearing, linkages and bearings that are present in a conventional movement gauge
Dry Ammonia Gauge

Dry Ammonia Gauge

For ammonia ambient pressure test
Contractor Gauge

Contractor Gauge

Lightweight, sensitive and accurate, contractor gauges are appropriate for general industrial applications
U-Clamp Dry Gauge

U-Clamp Dry Gauge

For General purpose of measurement.
Use No Oil Pressure Gauge

Use No Oil Pressure Gauge

Use no oil gauge is designed for welding, medical, and compressed gas regulator service. Strictly oil-free controlled in production
Ball Style Tubular Lock

Ball Style Tubular Lock

Ball style tubular lock.
Small Trumpet Door Lock

Small Trumpet Door Lock

Small trumpet door lock.
Tulip Style Door Lock

Tulip Style Door Lock

Tulip style door lock.
Big Trumpet Door Lock

Big Trumpet Door Lock

Big trumpet door lock.
Straight Lever Door Lock

Straight Lever Door Lock

Straight lever door lock.
Singe and Double Cylinder Deadbolt

Singe and Double Cylinder Deadbolt

Singe and double cylinder deadbolt.
Freon Pressure Gauge (Refrigerant)

Freon Pressure Gauge (Refrigerant)

Features:
1) Size: 2 1/2" (63mm)
2) Case: blue for low pressure, red for high pressure
3) Vibra
Curved Lever Door Lock

Curved Lever Door Lock

Curved lever door lock
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Company Info

ALF Machinery & Instrument ( Shanghai) Co.,Ltd.
[China (Mainland)]
[Verified Member]

Province/State: Shanghai
Country/Region : China (Mainland)

Business Type:Manufacturer

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