Founded in 1998, Beijing Zhong Cheng Quartz Glass Co., Ltd. (ZCQ for short) represents a high-tech supplier manufacturing quartz, optical glass, crystal glass products and molding tools located in Changping District, Beijing, China. Our main customers are from overseas countries and mainland China. ZCQ's products are widely in the lines of semiconductors, electronics, coating, laser, chemicals, medical treatment, spaceflight, optical resources, laboratory research, mechanical equipment and others. We mainly supply: 1. Quartz Products 2. Optical Glass 3. Crystal Glass 4. Some plastic and metal molding tools In Type 1 Quartz Glass, we are supplying: a. Quartz discs, windows, flats, plates, rings, substrates, wafers, fringes, and panels: both in fine polishing, fine grinding or commercial polishing and grinding; in transparent, nontransparent or opaque statuses b. CNC Quartz components and parts: Through CNC design and software control, the Quartz parts can be precisely fabricated especially in doing arcs, slopes, slots, spheres, holes and cones, and taking 3D and angle processing in accordance with clients' own designs. c. Quartz labware made by thermal treatment: Tubing, apparatuses and various customer-designed labware can be made. d. Sio2 Targets (Silicon Dioxide Sputtering Targets): as a thin film and composite coating material for vacuum coating: Purity: Containing SIO2 of 99.95%-99.9999% Characteristics: High Purity; Low Air Bubble Density; Low Impurity Content Category: Grains, Wafers, Discs, Panels, Plates, Rings, and Blocks In Type 2 and 3 Optical Glass, we are supplying: a. BK7 glass b. B270 glass c. F-series glass d. Float glass e. CaF2 glass f. Quartz Crystal g. Optical Coating (AR, UV Filters) h. Other various optical materials Some typical products: 1. High Precision Windows Dimension Tolerance: plus/minor 0.1mm ~ plus/minor0.01mm Flatness: fringe ~ fringe /10 Surface Quality: 60/40 ~ 10/5 2. Ultra Thin Windows Custom-Made Length / Width / OD by Thickness 1mm ~ 0.05mm 3. High Reflective Coating (HR), Anti-Reflection Coating, Protected Aluminum, and Protected Gold In Type 4 molding tools, we are supplying: Through CNC design and control, the metal and plastic molding tools and tooling fixtures for customers' mass production of their products, such as aluminum, copper, metal and others. We welcome clients both in domestic and overseas markets to contact us for an inquiry and friendly cooperation!

1. who are we?
We are based in Beijing, China, start from 1998,sell to Domestic Market(50.00%),Eastern Asia(7.00%),South Asia(6.00%),Southeast Asia(6.00%),Eastern Europe(6.00%),Western Europe(4.00%),North America(4.00%),Mid East(4.00%),Oceania(3.00%),Southern Europe(3.00%),Northern Europe(3.00%),South America(2.00%),Central America(2.00%). There are total about 51-100 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Glass Capillary Tubes and Rods/Special Shaped Glass Capillary Tubes and Rods/ Quartz Plates/ Quartz Machined Parts/ Quartz Instruments/ Quartz Laser Cavity Filter,Glass Capillary Tube and Rod,Special Shaped Glass Capillary Tube and Rod,Quartz Laser Cavity Filter,Multi hole Laser Flow Tube

4. why should you buy from us not from other suppliers?
Over 20 years experience, we specialize in the custom processing of various optical glass, including glass capillary tube / rod, shaped glass tube / rod, quartz plate, laser cavity filter, fiber end cap, quartz instrument and quartz parts.

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES；
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian