100% payment before shipment or as negotiated terms with clients .For protecting clients' payment security .Trade assurance order is highly recommended.

yes, we could offer the sample ,considering the high value of our products ,the sample is not free ,but we will give your our best price including shipping cost.

Yhchem is professional manufacturer of lab euipment and ew have our own factory. 

YHCHEM, a high-tech enterprise, was established in 2009 and headquartered in Shanghai with more than 50 employees both at home and abroad and an area of 5,000 square meters. We have a globally competitive production base of modern biopharmaceutical equipment, which attributes us to be a equipment and process provider of automatic system of synthesis, extraction, separation, and purification for global biopharmaceutical companies. With over 10-year hard work, passion, and win-win spirit, YHCHEM provides more than 8,000 equipment for hundreds of well-known companies in more than 100 countries and regions around the world, and has successfully entered Western Europe, North America and other high-level regulatory market, and solutions are widely used in bioengineering, pharmaceutical, chemical, food, environmental protection and other fields.

YHCHEM are manufactured with following products of lab and plant scale: short-path molecular distillation, short-path distillation kit, thin-film evaporator, rectification/distillation tower(kettle), falling film evaporator, single-effect evaporator, rotary evaporator, reactor, synthesizer, thermostatic bath, filtration system, stirrer, vacuum equipment, extraction equipment, preparative chromatography, crystallization equipment, customized glass and stainless steel equipment, etc.

Generally  it is within 3 wroking days after got your payment if the goods  are in stock ,or it is 5-10 wroking days if goods are not in stock