Mr.MAJIDTARIQ, yes, if you want to apply for Business Visa to China, it is compulsory to provide the Invitation letter from the company you want to visit in China and Original Visa Notice Sheet from an authorized governmental apparatus /organization in China prescribing the visa validity, number of entries and stay period;

The other option is you apply for tourist visa, first contact a qualified travel agency of China and settled down all the details of the tour. And then the tourist agency may arrange a visa notice form for a travel group (more than 5 people) and a group-visa for you, after you entering China, you can import clothing from China, but you should enter and exit China with other tour memebers.