Dear Sir/Madam,

I’m not in the office from Oct.1st until Oct.8th because of the public holiday of National Day and Mid-Autumn Festival.

All of processing order were updated status to you before Oct. 1st, and all of outstanding inquiry will come to you as usual.

You also can send you new orders/inquires/question to me as usual. My emails will be checked periodically/everyday during this time, and come to you accordingly.

Please call me at +86-13949244876(Wechat/Whatsapp) to find me directly for any urgent issues.

Thanks and best regards,

PRM international trade department

PRM is a manufacturer specializing in the design, production sales and service of industrial gear boxes, gears, shafts and other machinery parts. We can provide suitable solutions for different industry applications. The products are widely used in mining, cement, electric power, rubber, construction machinery, steel mills, aluminum plants, sugar plants and other industries.

Related product and service
Gear wheel: spur gear, helical gear, internal gear,herringbone gear, bevel gear, worm and worm gear, pinion, gear rim;
Shaft: gearshaft, pinion shaft, spline shaft, flange shaft, step shaft, threaded shaft;
Industrial gearbox:gearbox design, manufacture,
repair and maintain/upgrade/on-site inspect/mapping and spare parts service;
Casting, forging, welding, machining;
Mining parts:steel ball, linear, end cover, hammer, rotary kiln tyre, support roller, hosing and etc


as per drawing, also recommend the upgraded material, common material(ISO or EN standard):
QT: C45(1.0503), 34CrMo4(1.7220), 42CrMo4(1.7225), 36CrNiMo4(1.6511), 31CrNiMo8(1.6580), 34CrNiMo6(1.6582),41CrAIMo74(GB38CrMoAi)
Carburizing: 18CrNiMo7(1.6587), 16MnCr5(1.7131)
as per drawing and techanical requirement, GB, EN, DIN, ASTM, GOST, JIS,BS, SS, CSN, ISO
Produce process
forging, casting, welding, heat treatment, turning, gear cutting, milling, drilling, machining, CNC machining, grinding
Heat treatment
QT, Carburizing, nitriding, tooth surface quenching
Material chemical composition test,Dimension and visual inspect, hardness test,Ultrasonic inspection,Surface roughness test,
mechanical property test, three coordiates test, Magnetic particle test
Mining, consturction, cement, rolling,metallurgy, power, general engineering and etc.