NSP - the most experienced Excavator Bucket Manufacturer in New Zealand. Northland Steel Products for Excavator BucketsStarting with small beginnings in 1960, we have made over 35,000 buckets and attachments. Northland Steel Products is a family owned and operated business based in the village of Waipu on Northland's east coast. We have the latest state of the art equipment and technology, and our aim is Complete Customer Satisfaction. We are members of the New Zealand Equipment Suppliers Association. We are proudly 100% New Zealand owned and operated.