What is notch?
What is grey cloth?
What is basting?
What is french seam?
What is pivot?
What is detergent?
What is metallic fibers?
What is substrate?
What is edge stitching?
What is blind hem?
Why acetic acid is used in enzyme bath?
What is blotch print?
What is clean finish?
What is astm?
What is glass transition temperature?